Merge pull request #22 from bohd4nx/dev

Release 2026.2.2: payment_method cleanup, wallet balance behavior updates, docs/tests sync

.github/ISSUE_TEMPLATE/bug.yaml

@@ -1,101 +1,101 @@
 name: Bug report
 description: Report an issue or unexpected behavior in pyfragment.
 labels:
-  - bug
+- bug
 body:
-  - type: checkboxes
-    attributes:
-      label: Checklist
-      options:
-        - label: I am sure the error is coming from pyfragment code
-          required: true
-        - label: I have searched the issue tracker for similar bug reports, including closed ones
-          required: true
-
-  - type: markdown
-    attributes:
-      value: |
-        ## Context
-        Please provide as much detail as possible to help us reproduce and fix the issue.
-
-  - type: input
-    attributes:
-      label: Operating system
-      placeholder: e.g. Ubuntu 22.04 / macOS 14 / Windows 11
-    validations:
+- type: checkboxes
+  attributes:
+    label: Checklist
+    options:
+    - label: I am sure the error is coming from pyfragment code
+      required: true
+    - label: I have searched the issue tracker for similar bug reports, including closed ones
       required: true
 
-  - type: input
-    attributes:
-      label: Python version
-      description: Run `python --version` inside your virtualenv
-      placeholder: e.g. 3.12.3
-    validations:
-      required: true
+- type: markdown
+  attributes:
+    value: |
+      ## Context
+      Please provide as much detail as possible to help us reproduce and fix the issue.
 
-  - type: input
-    attributes:
-      label: pyfragment version
-      description: Run `pip show pyfragment` inside your virtualenv
-      placeholder: e.g. 2026.1.0
-    validations:
-      required: true
+- type: input
+  attributes:
+    label: Operating system
+    placeholder: e.g. Ubuntu 22.04 / macOS 14 / Windows 11
+  validations:
+    required: true
 
-  - type: textarea
-    attributes:
-      label: Expected behavior
-      description: Describe what you expected to happen.
-      placeholder: e.g. Stars should be purchased and StarsResult returned.
-    validations:
-      required: true
+- type: input
+  attributes:
+    label: Python version
+    description: Run `python --version` inside your virtualenv
+    placeholder: e.g. 3.12.3
+  validations:
+    required: true
 
-  - type: textarea
-    attributes:
-      label: Current behavior
-      description: Describe what is actually happening.
-      placeholder: e.g. ParseError is raised with status 400.
-    validations:
-      required: true
+- type: input
+  attributes:
+    label: pyfragment version
+    description: Run `pip show pyfragment` inside your virtualenv
+    placeholder: e.g. 2026.1.0
+  validations:
+    required: true
 
-  - type: textarea
-    attributes:
-      label: Steps to reproduce
-      description: Minimal steps that reproduce the issue.
-      placeholder: |
-        1. Create FragmentClient with valid credentials
-        2. Call purchase_stars("@username", amount=100)
-        3. See error
-    validations:
-      required: true
+- type: textarea
+  attributes:
+    label: Expected behavior
+    description: Describe what you expected to happen.
+    placeholder: e.g. Stars should be purchased and StarsResult returned.
+  validations:
+    required: true
 
-  - type: textarea
-    attributes:
-      label: Code example
-      description: Provide a [minimal reproducible example](https://stackoverflow.com/help/minimal-reproducible-example) if applicable.
-      placeholder: |
-        import asyncio
-        from pyfragment import FragmentClient
+- type: textarea
+  attributes:
+    label: Current behavior
+    description: Describe what is actually happening.
+    placeholder: e.g. ParseError is raised with status 400.
+  validations:
+    required: true
 
-        async def main():
-            client = FragmentClient(...)
-            result = await client.purchase_stars("@username", amount=100)
+- type: textarea
+  attributes:
+    label: Steps to reproduce
+    description: Minimal steps that reproduce the issue.
+    placeholder: |
+      1. Create FragmentClient with valid credentials
+      2. Call purchase_stars("@username", amount=100)
+      3. See error
+  validations:
+    required: true
 
-        asyncio.run(main())
-      render: python
+- type: textarea
+  attributes:
+    label: Code example
+    description: Provide a [minimal reproducible example](https://stackoverflow.com/help/minimal-reproducible-example) if applicable.
+    placeholder: |
+      import asyncio
+      from pyfragment import FragmentClient
 
-  - type: textarea
-    attributes:
-      label: Traceback / logs
-      description: Paste the full traceback or relevant logs.
-      placeholder: |
-        Traceback (most recent call last):
-          File "main.py", line 7, in main
-            ...
-        pyfragment.types.ParseError: ...
-      render: sh
+      async def main():
+          client = FragmentClient(...)
+          result = await client.purchase_stars("@username", amount=100)
 
-  - type: textarea
-    attributes:
-      label: Additional information
-      description: Anything else that might help us diagnose the problem.
-      placeholder: e.g. Only happens with V5R1 wallet version.
+      asyncio.run(main())
+    render: python
+
+- type: textarea
+  attributes:
+    label: Traceback / logs
+    description: Paste the full traceback or relevant logs.
+    placeholder: |
+      Traceback (most recent call last):
+        File "main.py", line 7, in main
+          ...
+      pyfragment.types.ParseError: ...
+    render: sh
+
+- type: textarea
+  attributes:
+    label: Additional information
+    description: Anything else that might help us diagnose the problem.
+    placeholder: e.g. Only happens with V5R1 wallet version.

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +1,5 @@
 blank_issues_enabled: true
 contact_links:
-  - name: Ask a question or start a discussion
-    url: https://github.com/bohd4nx/pyfragment/discussions
-    about: General questions, ideas, and community help go here — not in the issue tracker.
+- name: Ask a question or start a discussion
+  url: https://github.com/bohd4nx/pyfragment/discussions
+  about: General questions, ideas, and community help go here — not in the issue tracker.

.github/ISSUE_TEMPLATE/feature.yaml

@@ -1,51 +1,51 @@
 name: Feature request
 description: Suggest an improvement or new feature for pyfragment.
 labels:
-  - enhancement
+- enhancement
 body:
-  - type: dropdown
-    attributes:
-      label: pyfragment version
-      description: Which version are you running?
-      options:
-        - latest
-        - older
-        - n/a
-    validations:
-      required: true
+- type: dropdown
+  attributes:
+    label: pyfragment version
+    description: Which version are you running?
+    options:
+    - latest
+    - older
+    - n/a
+  validations:
+    required: true
 
-  - type: textarea
-    attributes:
-      label: Problem
-      description: Is your request related to a specific problem? Describe it.
-      placeholder: e.g. There is no way to check my current TON balance before sending.
-    validations:
-      required: true
+- type: textarea
+  attributes:
+    label: Problem
+    description: Is your request related to a specific problem? Describe it.
+    placeholder: e.g. There is no way to check my current TON balance before sending.
+  validations:
+    required: true
 
-  - type: textarea
-    attributes:
-      label: Proposed solution
-      description: Describe what you would like to see added or changed.
-      placeholder: e.g. Add a get_balance() method to FragmentClient.
-    validations:
-      required: true
+- type: textarea
+  attributes:
+    label: Proposed solution
+    description: Describe what you would like to see added or changed.
+    placeholder: e.g. Add a get_balance() method to FragmentClient.
+  validations:
+    required: true
 
-  - type: textarea
-    attributes:
-      label: Alternatives considered
-      description: Any workarounds or alternative approaches you have thought of.
-      placeholder: e.g. I manually call the Fragment API, but it's not ergonomic.
+- type: textarea
+  attributes:
+    label: Alternatives considered
+    description: Any workarounds or alternative approaches you have thought of.
+    placeholder: e.g. I manually call the Fragment API, but it's not ergonomic.
 
-  - type: textarea
-    attributes:
-      label: Code example
-      description: A short example demonstrating the desired API, if applicable.
-      placeholder: |
-        balance = await client.get_balance()
-        print(balance.ton)
-      render: python
+- type: textarea
+  attributes:
+    label: Code example
+    description: A short example demonstrating the desired API, if applicable.
+    placeholder: |
+      balance = await client.get_balance()
+      print(balance.ton)
+    render: python
 
-  - type: textarea
-    attributes:
-      label: Additional information
-      description: Any other context, screenshots, or references.
+- type: textarea
+  attributes:
+    label: Additional information
+    description: Any other context, screenshots, or references.

.github/dependabot.yml

@@ -1,19 +1,19 @@
 version: 2
 updates:
-  - package-ecosystem: "pip"
-    directory: "/"
-    schedule:
-      interval: "weekly"
-      day: "monday"
-    open-pull-requests-limit: 5
-    labels:
-      - "dependencies"
+- package-ecosystem: "pip"
+  directory: "/"
+  schedule:
+    interval: "weekly"
+    day: "monday"
+  open-pull-requests-limit: 5
+  labels:
+  - "dependencies"
 
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "weekly"
-      day: "monday"
-    open-pull-requests-limit: 5
-    labels:
-      - "dependencies"
+- package-ecosystem: "github-actions"
+  directory: "/"
+  schedule:
+    interval: "weekly"
+    day: "monday"
+  open-pull-requests-limit: 5
+  labels:
+  - "dependencies"

.github/workflows/ci.yml

@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: ["**"]
+    branches: [ "**" ]
   pull_request:
-    branches: ["**"]
+    branches: [ "**" ]
 
 jobs:
   lint:
@@ -14,15 +14,15 @@ jobs:
       FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
 
     steps:
-      - uses: actions/checkout@v6.0.2
+    - uses: actions/checkout@v6
 
-      - uses: actions/setup-python@v6.2.0
-        with:
-          python-version: "3.12"
+    - uses: actions/setup-python@v6
+      with:
+        python-version: "3.10"
 
-      - run: pip install ".[dev]"
+    - run: pip install ".[dev]"
 
-      - run: ruff check . && black --check . --target-version py312 && mypy pyfragment
+    - run: ruff check . && ruff format --check . && mypy pyfragment
 
   test:
     name: Tests (Python ${{ matrix.python-version }})
@@ -33,23 +33,17 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12"] # 3.13, 3.14 are not supported by some dependencies yet
+        python-version: [ "3.10", "3.11", "3.12" ] # 3.13, 3.14 are not supported by some dependencies yet
 
     steps:
-      - uses: actions/checkout@v6.0.2
+    - uses: actions/checkout@v6
 
-      - name: Set up conda (Miniconda)
-        uses: conda-incubator/setup-miniconda@v3
-        with:
-          auto-update-conda: true
-          python-version: ${{ matrix.python-version }}
-          activate-environment: pyfragment-test
-          auto-activate-base: false
+    - uses: actions/setup-python@v6
+      with:
+        python-version: ${{ matrix.python-version }}
 
-      - name: Install package and dev dependencies
-        shell: bash -el {0}
-        run: pip install ".[dev]"
+    - name: Install package and dev dependencies
+      run: pip install ".[dev]"
 
-      - name: Run tests
-        shell: bash -el {0}
-        run: pytest
+    - name: Run tests
+      run: pytest

.github/workflows/publish.yml

@@ -2,9 +2,9 @@ name: Publish
 
 on:
   workflow_run:
-    workflows: ["CI"]
-    types: [completed]
-    branches: [master]
+    workflows: [ "CI" ]
+    types: [ completed ]
+    branches: [ master ]
 
 jobs:
   version-check:
@@ -18,24 +18,24 @@ jobs:
       is-new: ${{ steps.tag.outputs.is-new }}
 
     steps:
-      - uses: actions/checkout@v6.0.2
-        with:
-          fetch-depth: 0
+    - uses: actions/checkout@v6
+      with:
+        fetch-depth: 0
 
-      - name: Read version
-        id: version
-        run: |
-          value=$(grep '^version = ' pyproject.toml | sed 's/version = "\(.*\)"/\1/')
-          echo "value=$value" >> $GITHUB_OUTPUT
+    - name: Read version
+      id: version
+      run: |
+        value=$(grep '^version = ' pyproject.toml | sed 's/version = "\(.*\)"/\1/')
+        echo "value=$value" >> $GITHUB_OUTPUT
 
-      - name: Check tag
-        id: tag
-        run: |
-          if git ls-remote --tags origin "refs/tags/v${{ steps.version.outputs.value }}" | grep -q .; then
-            echo "is-new=false" >> $GITHUB_OUTPUT
-          else
-            echo "is-new=true" >> $GITHUB_OUTPUT
-          fi
+    - name: Check tag
+      id: tag
+      run: |
+        if git ls-remote --tags origin "refs/tags/v${{ steps.version.outputs.value }}" | grep -q .; then
+          echo "is-new=false" >> $GITHUB_OUTPUT
+        else
+          echo "is-new=true" >> $GITHUB_OUTPUT
+        fi
 
   build:
     name: Build
@@ -46,24 +46,24 @@ jobs:
       FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
 
     steps:
-      - uses: actions/checkout@v6.0.2
+    - uses: actions/checkout@v6
 
-      - uses: actions/setup-python@v6.2.0
-        with:
-          python-version: "3.12"
+    - uses: actions/setup-python@v6
+      with:
+        python-version: "3.12"
 
-      - uses: astral-sh/setup-uv@v7.6.0
+    - uses: astral-sh/setup-uv@v8.1.0
 
-      - run: uv build
+    - run: uv build
 
-      - uses: actions/upload-artifact@v7
-        with:
-          name: dist
-          path: dist/*
+    - uses: actions/upload-artifact@v7
+      with:
+        name: dist
+        path: dist/*
 
   publish:
     name: Publish to PyPI
-    needs: [version-check, build]
+    needs: [ version-check, build ]
     runs-on: ubuntu-latest
     env:
       FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
@@ -74,16 +74,16 @@ jobs:
       id-token: write
 
     steps:
-      - uses: actions/download-artifact@v8.0.1
-        with:
-          name: dist
-          path: dist
+    - uses: actions/download-artifact@v8
+      with:
+        name: dist
+        path: dist
 
-      - uses: pypa/gh-action-pypi-publish@v1.13.0
+    - uses: pypa/gh-action-pypi-publish@release/v1
 
   release:
     name: GitHub Release
-    needs: [version-check, build]
+    needs: [ version-check, build ]
     runs-on: ubuntu-latest
     env:
       FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
@@ -91,27 +91,27 @@ jobs:
       contents: write
 
     steps:
-      - uses: actions/checkout@v6.0.2
-        with:
-          fetch-depth: 0
+    - uses: actions/checkout@v6
+      with:
+        fetch-depth: 0
 
-      - uses: actions/download-artifact@v8.0.1
-        with:
-          name: dist
-          path: dist
+    - uses: actions/download-artifact@v8
+      with:
+        name: dist
+        path: dist
 
-      - name: Extract latest changelog entry
-        id: changelog
-        run: |
-          body=$(awk '/^## \[/{if(found) exit; found=1; next} found{print}' CHANGELOG.md)
-          echo "body<<EOF" >> $GITHUB_OUTPUT
-          echo "$body" >> $GITHUB_OUTPUT
-          echo "EOF" >> $GITHUB_OUTPUT
+    - name: Extract latest changelog entry
+      id: changelog
+      run: |
+        body=$(awk '/^## \[/{if(found) exit; found=1; next} found{print}' CHANGELOG.md)
+        echo "body<<EOF" >> $GITHUB_OUTPUT
+        echo "$body" >> $GITHUB_OUTPUT
+        echo "EOF" >> $GITHUB_OUTPUT
 
-      - uses: softprops/action-gh-release@v2.6.1
-        with:
-          tag_name: v${{ needs.version-check.outputs.version }}
-          name: v${{ needs.version-check.outputs.version }}
-          files: dist/*
-          body: ${{ steps.changelog.outputs.body }}
-          make_latest: true
+    - uses: softprops/action-gh-release@v3
+      with:
+        tag_name: v${{ needs.version-check.outputs.version }}
+        name: v${{ needs.version-check.outputs.version }}
+        files: dist/*
+        body: ${{ steps.changelog.outputs.body }}
+        make_latest: true

CHANGELOG.md

@@ -7,6 +7,54 @@ and this project uses [Calendar Versioning](https://calver.org/) (`YYYY.MINOR.MI
 
 ---
 
+## [2026.2.2] — 2026-05-11
+
+### Added
+
+- `payment_method` option (`"ton"` / `"usdt_ton"`) for:
+  - `purchase_stars()`
+  - `purchase_premium()`
+  - `giveaway_stars()`
+  - `giveaway_premium()`
+
+### Changed
+
+- Added runtime validation for `payment_method` via `SUPPORTED_PAYMENT_METHODS` and `ConfigurationError.INVALID_PAYMENT_METHOD`
+- Updated method docstrings to explicitly document recipient/channel formats:
+  - `@username` / `username` / `https://t.me/username`
+- `get_wallet()` now returns balances as separate fields: `ton_balance` and `usdt_balance`
+- Wallet/system test output now prints TON and USDT balances on separate lines
+- Balance checks are now method-aware with explicit thresholds:
+  - `ton`: minimum TON balance threshold via `MIN_TON_BALANCE` (based on current 50 Stars purchase amount)
+  - `usdt_ton`: minimum USDT balance threshold via `MIN_USDT_BALANCE` (based on current 50 Stars purchase amount)
+
+### Tests
+
+- Extended stars and premium test suites to cover:
+  - invalid payment method
+  - payment method propagation to `init*Request` payloads
+  - accepted query formats (`@`, plain username, `t.me` link)
+- Extended wallet tests to verify separate TON/USDT balance values in `WalletInfo`
+
+### Documentation
+
+- Simplified `README` usage example
+
+## [2026.2.1] — 2026-05-03
+
+### Fixed
+
+- Fragment API 429 responses are now retried automatically (up to 3 attempts) with exponential backoff and jitter in `fragment_request`
+- Retry delays in TON transaction broadcasting now include jitter to reduce contention under concurrent calls
+- Improved handling of non-200 HTTP responses in `get_fragment_hash`
+- Removed unnecessary `method` key leaking into certain API request payloads
+
+### Changed
+
+- Type hints refined across the codebase for better clarity and `mypy` strict compliance
+
+---
+
 ## [2026.2.0] — 2026-04-14
 
 ### Added
@@ -33,37 +81,44 @@ and this project uses [Calendar Versioning](https://calver.org/) (`YYYY.MINOR.MI
 ### Added
 
 **Giveaways**
+
 - `giveaway_stars(channel, winners, amount)` — Stars giveaway; 1–5 winners, 500–1 000 000 stars each
 - `giveaway_premium(channel, winners, months)` — Premium giveaway; 1–24 000 winners, 3/6/12 months each
 - `StarsGiveawayResult`, `PremiumGiveawayResult` result types
 
 **Telegram Ads**
+
 - `recharge_ads(account, amount)` — top up a Telegram Ads account; 1–1 000 000 000 TON
 - `AdsRechargeResult` result type
 
 **Marketplace**
+
 - `search_usernames(query?, sort?, filter?, offset_id?)` — search Fragment usernames; `sort`: `price_desc / price_asc / listed / ending`, `filter`: `auction / sale / sold`
 - `search_numbers(query?, sort?, filter?, offset_id?)` — search Fragment anonymous numbers; same `sort` / `filter` / pagination semantics
 - `search_gifts(query?, collection?, sort?, filter?, view?, attr?, offset?)` — search Fragment gifts; `attr` accepts `{"Model": ["Foosball"], "Backdrop": ["Celtic Blue"]}`
 - `UsernamesResult`, `NumbersResult`, `GiftsResult` result types
 
 **Anonymous numbers**
+
 - `get_login_code(number)` — fetch the current pending login code
 - `toggle_login_codes(number, can_receive)` — enable or disable login code delivery
 - `terminate_sessions(number)` — terminate all active Telegram sessions (two-step flow handled internally)
 - `LoginCodeResult`, `TerminateSessionsResult` result types; `AnonymousNumberError` exception
 
 **Raw API**
+
 - `FragmentClient.call(method, data, *, page_url)` — raw request to any Fragment API method
 - `FRAGMENT_BASE_URL` constant — base URL shared across all page constants and headers
 
 **Examples**
+
 - `examples/client/` — `wallet_info.py` (wallet info), `raw_api_call.py` (raw API call)
 - `examples/numbers/` — `manage_number.py` (login code fetch, session termination)
 - `examples/auctions/` — `search_usernames.py`, `search_numbers.py`, `search_gifts.py` (marketplace search with pagination)
 - `examples/purchase/` — `send_stars.py`, `send_premium.py`, `topup_ton_balance.py`, `run_stars_giveaway.py`, `run_premium_giveaway.py`, `recharge_ads_balance.py`
 
 ### Changed
+
 - All result types now expose a unified `amount` field (`months` and `stars` removed)
 - `__repr__` includes the unit — `3 months`, `500 stars`, etc.
 - `timestamp` removed from all result dataclasses
@@ -76,15 +131,18 @@ and this project uses [Calendar Versioning](https://calver.org/) (`YYYY.MINOR.MI
 ## [2026.0.2] — 2026-03-20
 
 ### Added
+
 - `timeout` parameter on `FragmentClient` (default `30.0` s) — passed through to every HTTP request
 
 ### Changed
+
 - Cookie validation: narrowed type internally so no `# type: ignore` is needed in `FragmentClient.__init__`
 - `WALLET_CLASSES` typed as `dict[str, Any]` so mypy resolves `from_mnemonic` correctly
 - All four `examples/` files updated to `async with FragmentClient`, f-strings, and aligned error messages
 - README usage section rewritten with a single comprehensive `async with` example
 
 ### Fixed
+
 - mypy: missing return path in `process_transaction` after retry loop
 - mypy: `cookies` union-attr error in `FragmentClient.__init__`
 
@@ -93,6 +151,7 @@ and this project uses [Calendar Versioning](https://calver.org/) (`YYYY.MINOR.MI
 ## [2026.0.1] — 2026-03-16
 
 ### Added
+
 - Initial stable release of `pyfragment`
 - `FragmentClient` — async client for the Fragment.com API with context manager support (`async with`)
 - `purchase_premium(username, months)` — purchase Telegram Premium for any user (3, 6, or 12 months)
@@ -104,6 +163,8 @@ and this project uses [Calendar Versioning](https://calver.org/) (`YYYY.MINOR.MI
 - `py.typed` marker — full PEP 561 typing support for type-checkers
 - `__repr__` on all result types for readable debug output
 
+[2026.2.2]: https://github.com/bohd4nx/pyfragment/releases/tag/v2026.2.2
+[2026.2.1]: https://github.com/bohd4nx/pyfragment/releases/tag/v2026.2.1
 [2026.2.0]: https://github.com/bohd4nx/pyfragment/releases/tag/v2026.2.0
 [2026.1.0]: https://github.com/bohd4nx/pyfragment/releases/tag/v2026.1.0
 [2026.0.2]: https://github.com/bohd4nx/pyfragment/releases/tag/v2026.0.2

README.md

@@ -4,15 +4,14 @@
   <h1 style="margin-top: 24px;">Fragment API</h1>
 
   <p style="font-size: 18px; margin-bottom: 24px;">
-    <b>Async Python client for the Fragment API — a unified toolkit to manage Telegram assets: purchase Stars and Premium, top up TON and Ads balances, run giveaways, manage anonymous numbers, and explore the marketplace for usernames, numbers, and gifts.</b>
+    <b>Async Python client for the Fragment API. Buy Stars and Premium, top up TON and Ads balances, run giveaways, manage anonymous numbers, and search Fragment listings.</b>
   </p>
 
 [![PyPI version](https://img.shields.io/pypi/v/pyfragment?style=flat&color=blue)](https://pypi.org/project/pyfragment/)
-[![PyPI downloads](https://img.shields.io/pypi/dm/pyfragment?style=flat&color=brightgreen)](https://pypi.org/project/pyfragment/)
+[![PyPI Downloads](https://static.pepy.tech/personalized-badge/pyfragment?period=total&units=INTERNATIONAL_SYSTEM&left_color=GREY&right_color=GREEN&left_text=downloads)](https://pepy.tech/projects/pyfragment)
 [![Python](https://img.shields.io/badge/Python-3.10+-3776AB?style=flat&logo=python&logoColor=white)](https://python.org)
-[![License](https://img.shields.io/github/license/bohd4nx/pyfragment?style=flat&color=lightgrey)](LICENSE)
-[![Stars](https://img.shields.io/github/stars/bohd4nx/pyfragment?style=flat&color=yellow)](https://github.com/bohd4nx/pyfragment/stargazers)
-[![CI](https://img.shields.io/github/actions/workflow/status/bohd4nx/pyfragment/ci.yml?style=flat&label=tests&logo=github)](https://github.com/bohd4nx/pyfragment/actions)
+[![Tests](https://img.shields.io/github/actions/workflow/status/bohd4nx/pyfragment/ci.yml?style=flat&label=tests&logo=github)](https://github.com/bohd4nx/pyfragment/actions)
+[![License](https://img.shields.io/github/license/bohd4nx/pyfragment?style=flat&color=green)](https://github.com/bohd4nx/pyfragment/blob/master/LICENSE)
 
 [Report Bug](https://github.com/bohd4nx/pyfragment/issues) · [Request Feature](https://github.com/bohd4nx/pyfragment/issues) · [**Donate TON**](https://app.tonkeeper.com/transfer/UQCppfw5DxWgdVHf3zkmZS8k1mt9oAUYxQLwq2fz3nhO8No5)
 
@@ -75,22 +74,13 @@ Refresh when you get authentication errors.
 
 ```python
 import asyncio
-from pyfragment import (
-    FragmentClient,
-    FragmentError,       # base — catches everything below
-    UserNotFoundError,   # username doesn't exist on Fragment
-    WalletError,         # insufficient balance or misconfiguration
-    CookieError,         # cookies are missing or expired
-    TransactionError,    # on-chain broadcast failed
-    ConfigurationError,  # invalid argument (months, amount, etc.)
-    FragmentAPIError,    # unexpected Fragment API response
-)
+from pyfragment import FragmentClient
 
 
 async def main() -> None:
     async with FragmentClient(
-        seed="word1 word2 ... word24",  # 24-word TON wallet mnemonic
-        api_key="YOUR_TONAPI_KEY",       # from tonconsole.com
+        seed="word1 word2 ... word24",
+        api_key="YOUR_TONAPI_KEY",
         cookies={
             "stel_ssid": "...",
             "stel_dt": "...",
@@ -98,40 +88,29 @@ async def main() -> None:
             "stel_ton_token": "...",
         },
     ) as client:
-        try:
-            # Purchase 6 months of Telegram Premium
-            result = await client.purchase_premium("@username", months=6)
-            print(f"{result.amount} months of Premium successfully sent to {result.username} | tx: {result.transaction_id}")
+        wallet = await client.get_wallet()
+        print(f"Wallet: {wallet.address} | TON: {wallet.ton_balance} | USDT: {wallet.usdt_balance}")
 
-            # Purchase 500 Stars
-            result = await client.purchase_stars("@username", amount=500)
-            print(f"{result.amount} Stars successfully sent to {result.username} | tx: {result.transaction_id}")
+        recipient = "https://t.me/username"  # also supports: @username, username
 
-            # Top up 10 TON to Telegram balance
-            # wallet must hold at least amount + ~0.056 TON for gas
-            result = await client.topup_ton("@username", amount=10)
-            print(f"{result.amount} TON successfully sent to {result.username} | tx: {result.transaction_id}")
+        stars = await client.purchase_stars(recipient, amount=500, payment_method="usdt_ton")
+        print(f"Stars sent: {stars.amount} to {stars.username} | tx: {stars.transaction_id}")
 
-        except UserNotFoundError:
-            print(f"User was not found on fragment.com — check the username and try again.")
-        except WalletError as e:
-            print(f"Wallet error — insufficient balance or misconfiguration: {e}")
-        except CookieError:
-            print("Authentication failed — session cookies are missing or expired. Refresh them and retry.")
-        except TransactionError as e:
-            print(f"Transaction failed to broadcast on-chain: {e}")
-        except ConfigurationError as e:
-            print(f"Invalid argument: {e}")
-        except FragmentAPIError as e:
-            print(f"Unexpected response from Fragment API: {e}")
-        except FragmentError as e:
-            # catch-all for any other pyfragment error
-            print(f"Unexpected error: {e}")
+        premium = await client.purchase_premium(recipient, months=6, payment_method="ton")
+        print(f"Premium sent: {premium.amount} months to {premium.username} | tx: {premium.transaction_id}")
 
 
 asyncio.run(main())
 ```
 
+Full runnable examples:
+
+- https://github.com/bohd4nx/pyfragment/tree/master/examples
+
+Payload debug/decode helper (thanks):
+
+- https://ton-cell-abi-viewer.vercel.app/
+
 ---
 
 <div align="center">

examples/client/wallet_info.py

@@ -1,5 +1,5 @@
 """
-Example: fetch wallet address, state, and balance.
+Example: fetch wallet address, state, and separate TON/USDT balances.
 
 Cookies can be passed as a dict or as a JSON string.
 wallet_version defaults to "V5R1" — change to "V4R2" for older wallets.
@@ -35,7 +35,8 @@ async def main() -> None:
         wallet = await client.get_wallet()
         print(f"Address: {wallet.address}")
         print(f"State:   {wallet.state}")
-        print(f"Balance: {wallet.balance} TON")
+        print(f"Balance: {wallet.ton_balance} TON")
+        print(f"Balance: {wallet.usdt_balance} USDT")
 
 
 if __name__ == "__main__":

examples/purchase/recharge_ads_balance.py

@@ -2,7 +2,7 @@
 Example: recharge your own Telegram Ads account with TON.
 
 Amount must be an integer between 1 and 1 000 000 000 TON.
-Your wallet must hold at least the recharge amount + ~0.056 TON for gas.
+Your wallet must satisfy the current minimum TON threshold and transaction cost.
 """
 
 import asyncio

examples/purchase/run_premium_giveaway.py

@@ -3,6 +3,8 @@ Example: run a Telegram Premium giveaway for a channel.
 
 winners must be an integer between 1 and 24 000.
 months (Premium duration per winner) must be 3, 6, or 12.
+payment_method can be "ton" or "usdt_ton".
+Channel can be "@channel", "channel", or "https://t.me/channel".
 """
 
 import asyncio
@@ -24,15 +26,21 @@ COOKIES = {
     "stel_ton_token": "YOUR_STEL_TON_TOKEN",
 }
 
-CHANNEL = "@channel"
+CHANNEL = "https://t.me/channel"
 WINNERS = 10  # 1–24 000
 MONTHS = 3  # 3, 6 or 12
+PAYMENT_METHOD = "ton"  # "ton" or "usdt_ton"
 
 
 async def main() -> None:
     async with FragmentClient(seed=SEED, api_key=API_KEY, cookies=COOKIES) as client:
         try:
-            result = await client.giveaway_premium(CHANNEL, winners=WINNERS, months=MONTHS)
+            result = await client.giveaway_premium(
+                CHANNEL,
+                winners=WINNERS,
+                months=MONTHS,
+                payment_method=PAYMENT_METHOD,
+            )
         except UserNotFoundError:
             print(f"Channel {CHANNEL} was not found on fragment.com — check the username and try again.")
             return

examples/purchase/run_stars_giveaway.py

@@ -3,6 +3,8 @@ Example: run a Telegram Stars giveaway for a channel.
 
 winners must be an integer between 1 and 5.
 amount (stars per winner) must be an integer between 500 and 1 000 000.
+payment_method can be "ton" or "usdt_ton".
+Channel can be "@channel", "channel", or "https://t.me/channel".
 """
 
 import asyncio
@@ -24,15 +26,21 @@ COOKIES = {
     "stel_ton_token": "YOUR_STEL_TON_TOKEN",
 }
 
-CHANNEL = "@channel"
+CHANNEL = "https://t.me/channel"
 WINNERS = 3  # 1–5
 AMOUNT = 1000  # 500–1 000 000 stars per winner
+PAYMENT_METHOD = "usdt_ton"  # "ton" or "usdt_ton"
 
 
 async def main() -> None:
     async with FragmentClient(seed=SEED, api_key=API_KEY, cookies=COOKIES) as client:
         try:
-            result = await client.giveaway_stars(CHANNEL, winners=WINNERS, amount=AMOUNT)
+            result = await client.giveaway_stars(
+                CHANNEL,
+                winners=WINNERS,
+                amount=AMOUNT,
+                payment_method=PAYMENT_METHOD,
+            )
         except UserNotFoundError:
             print(f"Channel {CHANNEL} was not found on fragment.com — check the username and try again.")
             return

examples/purchase/send_premium.py

@@ -3,6 +3,8 @@ Example: purchase Telegram Premium for a user.
 
 Supported durations: 3, 6, or 12 months.
 Set show_sender=False to send anonymously.
+payment_method can be "ton" or "usdt_ton".
+Username can be "@username", "username", or "https://t.me/username".
 """
 
 import asyncio
@@ -24,14 +26,20 @@ COOKIES = {
     "stel_ton_token": "YOUR_STEL_TON_TOKEN",
 }
 
-USERNAME = "@username"
+USERNAME = "https://t.me/username"
 MONTHS = 3  # 3, 6 or 12
+PAYMENT_METHOD = "ton"  # "ton" or "usdt_ton"
 
 
 async def main() -> None:
     async with FragmentClient(seed=SEED, api_key=API_KEY, cookies=COOKIES) as client:
         try:
-            result = await client.purchase_premium(USERNAME, months=MONTHS, show_sender=True)
+            result = await client.purchase_premium(
+                USERNAME,
+                months=MONTHS,
+                show_sender=True,
+                payment_method=PAYMENT_METHOD,
+            )
         except UserNotFoundError:
             print(f"User {USERNAME} was not found on fragment.com — check the username and try again.")
             return

examples/purchase/send_stars.py

@@ -3,6 +3,8 @@ Example: purchase Telegram Stars for a user.
 
 Amount must be an integer between 50 and 1 000 000.
 Set show_sender=False to send anonymously.
+payment_method can be "ton" or "usdt_ton".
+Username can be "@username", "username", or "https://t.me/username".
 """
 
 import asyncio
@@ -24,14 +26,20 @@ COOKIES = {
     "stel_ton_token": "YOUR_STEL_TON_TOKEN",
 }
 
-USERNAME = "@username"
+USERNAME = "https://t.me/username"
 AMOUNT = 500  # 50–1 000 000 stars
+PAYMENT_METHOD = "usdt_ton"  # "ton" or "usdt_ton"
 
 
 async def main() -> None:
     async with FragmentClient(seed=SEED, api_key=API_KEY, cookies=COOKIES) as client:
         try:
-            result = await client.purchase_stars(USERNAME, amount=AMOUNT, show_sender=True)
+            result = await client.purchase_stars(
+                USERNAME,
+                amount=AMOUNT,
+                show_sender=True,
+                payment_method=PAYMENT_METHOD,
+            )
         except UserNotFoundError:
             print(f"User {USERNAME} was not found on fragment.com — check the username and try again.")
             return

examples/purchase/topup_ton_balance.py

@@ -4,7 +4,7 @@ Example: top up TON to a recipient's Telegram balance.
 For adding TON to a Telegram Ads account, use recharge_ads() instead.
 
 Amount must be an integer between 1 and 1 000 000 000 TON.
-Your wallet must hold at least the top-up amount + ~0.056 TON for gas.
+Your wallet must satisfy the current minimum TON threshold and transaction cost.
 """
 
 import asyncio

pyfragment/__init__.py

@@ -15,6 +15,7 @@ from pyfragment.types import (
     CookieError,
     CookieResult,
     FragmentAPIError,
+    # exceptions
     FragmentError,
     FragmentPageError,
     GiftsResult,
@@ -22,9 +23,12 @@ from pyfragment.types import (
     NumbersResult,
     OperationError,
     ParseError,
+    # literal types
+    PaymentMethod,
     PremiumGiveawayResult,
     PremiumResult,
     StarsGiveawayResult,
+    # results
     StarsResult,
     TerminateSessionsResult,
     TransactionError,
@@ -41,31 +45,35 @@ __version__: str = version("pyfragment")
 __all__ = [
     "__version__",
     "FragmentClient",
-    "AdsRechargeResult",
+    # results
+    "StarsResult",
+    "StarsGiveawayResult",
+    "PremiumResult",
+    "PremiumGiveawayResult",
+    "WalletInfo",
     "AdsTopupResult",
+    "AdsRechargeResult",
+    "CookieResult",
     "GiftsResult",
     "LoginCodeResult",
     "NumbersResult",
-    "PremiumGiveawayResult",
-    "PremiumResult",
-    "StarsGiveawayResult",
-    "StarsResult",
     "TerminateSessionsResult",
     "UsernamesResult",
-    "WalletInfo",
-    "ClientError",
-    "ConfigurationError",
-    "CookieError",
-    "CookieResult",
-    "FragmentAPIError",
+    # exceptions
     "FragmentError",
+    "FragmentAPIError",
     "FragmentPageError",
+    "ConfigurationError",
+    "UserNotFoundError",
+    "WalletError",
+    "VerificationError",
+    "TransactionError",
     "AnonymousNumberError",
+    "ClientError",
+    "CookieError",
     "OperationError",
     "ParseError",
-    "TransactionError",
     "UnexpectedError",
-    "UserNotFoundError",
-    "VerificationError",
-    "WalletError",
+    # literal types
+    "PaymentMethod",
 ]

pyfragment/client.py

@@ -36,6 +36,7 @@ from pyfragment.types.constants import (
     FRAGMENT_BASE_URL,
     REQUIRED_COOKIE_KEYS,
     SUPPORTED_WALLET_VERSIONS,
+    PaymentMethod,
     WalletVersion,
 )
 from pyfragment.utils.http import fragment_request, get_fragment_hash, make_headers
@@ -77,7 +78,7 @@ class FragmentClient:
         self,
         seed: str,
         api_key: str,
-        cookies: dict | str,
+        cookies: dict[str, Any] | str,
         wallet_version: str = "V5R1",
         timeout: float = DEFAULT_TIMEOUT,
     ) -> None:
@@ -98,7 +99,7 @@ class FragmentClient:
             except Exception as exc:
                 raise CookieError(CookieError.READ_FAILED.format(exc=exc)) from exc
 
-        missing_keys = [k for k in REQUIRED_COOKIE_KEYS if not str(cast(dict, cookies).get(k, "")).strip()]
+        missing_keys = [k for k in REQUIRED_COOKIE_KEYS if not str(cast(dict[str, Any], cookies).get(k, "")).strip()]
         if missing_keys:
             raise CookieError(CookieError.MISSING_KEYS.format(keys=", ".join(missing_keys)))
 
@@ -112,11 +113,11 @@ class FragmentClient:
 
         self.seed: str = seed.strip()
         self.api_key: str = api_key.strip()
-        self.cookies: dict = cast(dict, cookies)
+        self.cookies: dict[str, Any] = cast(dict[str, Any], cookies)
         self.wallet_version: WalletVersion = version  # type: ignore[assignment]
         self.timeout: float = timeout
 
-    async def __aenter__(self) -> "FragmentClient":
+    async def __aenter__(self) -> FragmentClient:
         return self
 
     async def __aexit__(self, *_: object) -> None:
@@ -125,31 +126,45 @@ class FragmentClient:
     def __repr__(self) -> str:
         return f"FragmentClient(wallet_version='{self.wallet_version}', cookies={len(self.cookies)} keys)"
 
-    async def purchase_premium(self, username: str, months: int, show_sender: bool = True) -> PremiumResult:
+    async def purchase_premium(
+        self,
+        username: str,
+        months: int,
+        show_sender: bool = True,
+        payment_method: PaymentMethod = "ton",
+    ) -> PremiumResult:
         """Gift Telegram Premium to a user.
 
         Args:
-            username: Recipient's Telegram username (with or without ``@``).
+            username: Recipient identifier — ``@username``, ``username``, or ``https://t.me/username``.
             months: Duration — ``3``, ``6``, or ``12``.
             show_sender: Show your name as the sender. Defaults to ``True``.
+            payment_method: Payment currency — ``"ton"`` (default) or ``"usdt_ton"``.
 
         Returns:
             :class:`PremiumResult` with ``transaction_id``, ``username``, and ``amount``.
         """
-        return await purchase_premium(self, username, months, show_sender)
+        return await purchase_premium(self, username, months, show_sender, payment_method)
 
-    async def purchase_stars(self, username: str, amount: int, show_sender: bool = True) -> StarsResult:
+    async def purchase_stars(
+        self,
+        username: str,
+        amount: int,
+        show_sender: bool = True,
+        payment_method: PaymentMethod = "ton",
+    ) -> StarsResult:
         """Send Telegram Stars to a user.
 
         Args:
-            username: Recipient's Telegram username (with or without ``@``).
+            username: Recipient identifier — ``@username``, ``username``, or ``https://t.me/username``.
             amount: Number of stars — integer from ``50`` to ``1 000 000``.
             show_sender: Show your name as the gift sender. Defaults to ``True``.
+            payment_method: Payment currency — ``"ton"`` (default) or ``"usdt_ton"``.
 
         Returns:
             :class:`StarsResult` with ``transaction_id``, ``username``, and ``amount``.
         """
-        return await purchase_stars(self, username, amount, show_sender)
+        return await purchase_stars(self, username, amount, show_sender, payment_method)
 
     async def topup_ton(self, username: str, amount: int, show_sender: bool = True) -> AdsTopupResult:
         """Top up TON to a recipient's Telegram balance.
@@ -178,11 +193,12 @@ class FragmentClient:
         return await recharge_ads(self, account, amount)
 
     async def get_wallet(self) -> WalletInfo:
-        """Return the address, state and balance of the TON wallet.
+        """Return the address, state, and balances of the wallet.
 
         Returns:
             :class:`WalletInfo` with ``address`` (``"UQ..."``), ``state``
-            (``"active"``, ``"uninit"``, ``"nonexist"``, or ``"frozen"``), and ``balance`` in TON.
+            (``"active"``, ``"uninit"``, ``"nonexist"``, or ``"frozen"``),
+            ``ton_balance`` in TON, and ``usdt_balance`` in USDT.
         """
         return await get_wallet_info(self)
 
@@ -191,38 +207,42 @@ class FragmentClient:
         channel: str,
         winners: int,
         amount: int,
+        payment_method: PaymentMethod = "ton",
     ) -> StarsGiveawayResult:
         """Run a Telegram Stars giveaway for a channel.
 
         Args:
-            channel: Channel username (with or without ``@``).
+            channel: Channel identifier — ``@channel``, ``channel``, or ``https://t.me/channel``.
             winners: Number of winners — integer from ``1`` to ``5``.
             amount: Stars each winner receives — integer from ``500`` to ``1 000 000``.
+            payment_method: Payment currency — ``"ton"`` (default) or ``"usdt_ton"``.
 
         Returns:
             :class:`StarsGiveawayResult` with ``transaction_id``, ``channel``,
             ``winners``, and ``amount``.
         """
-        return await giveaway_stars(self, channel, winners, amount)
+        return await giveaway_stars(self, channel, winners, amount, payment_method)
 
     async def giveaway_premium(
         self,
         channel: str,
         winners: int,
         months: int = 3,
+        payment_method: PaymentMethod = "ton",
     ) -> PremiumGiveawayResult:
         """Run a Telegram Premium giveaway for a channel.
 
         Args:
-            channel: Channel username (with or without ``@``).
+            channel: Channel identifier — ``@channel``, ``channel``, or ``https://t.me/channel``.
             winners: Number of winners — positive integer.
             months: Premium duration per winner — ``3``, ``6``, or ``12``. Defaults to ``3``.
+            payment_method: Payment currency — ``"ton"`` (default) or ``"usdt_ton"``.
 
         Returns:
             :class:`PremiumGiveawayResult` with ``transaction_id``, ``channel``,
             ``winners``, and ``amount``.
         """
-        return await giveaway_premium(self, channel, winners, months)
+        return await giveaway_premium(self, channel, winners, months, payment_method)
 
     async def get_login_code(self, number: str) -> LoginCodeResult:
         """Fetch the current pending login code for an anonymous number.

pyfragment/methods/anonymous_number.py

@@ -22,7 +22,7 @@ def _strip_plus(number: str) -> str:
     return number.lstrip("+") if isinstance(number, str) else number
 
 
-async def get_login_code(client: "FragmentClient", number: str) -> LoginCodeResult:
+async def get_login_code(client: FragmentClient, number: str) -> LoginCodeResult:
     """Fetch the current pending login code for an anonymous number.
 
     Args:
@@ -58,7 +58,7 @@ async def get_login_code(client: "FragmentClient", number: str) -> LoginCodeResu
         raise UnexpectedError(UnexpectedError.UNEXPECTED.format(exc=exc)) from exc
 
 
-async def toggle_login_codes(client: "FragmentClient", number: str, can_receive: bool) -> None:
+async def toggle_login_codes(client: FragmentClient, number: str, can_receive: bool) -> None:
     """Enable or disable login code delivery for an anonymous number.
 
     Args:
@@ -87,7 +87,7 @@ async def toggle_login_codes(client: "FragmentClient", number: str, can_receive:
         raise UnexpectedError(UnexpectedError.UNEXPECTED.format(exc=exc)) from exc
 
 
-async def terminate_sessions(client: "FragmentClient", number: str) -> TerminateSessionsResult:
+async def terminate_sessions(client: FragmentClient, number: str) -> TerminateSessionsResult:
     """Terminate all active Telegram sessions for an anonymous number.
 
     This is a two-step operation: Fragment first returns a confirmation hash,

pyfragment/methods/giveaway_premium.py

@@ -12,26 +12,28 @@ from pyfragment.types import (
     UserNotFoundError,
     VerificationError,
 )
-from pyfragment.types.constants import DEVICE, PREMIUM_GIVEAWAY_PAGE
-from pyfragment.utils import get_account_info, process_transaction
+from pyfragment.types.constants import DEVICE, PREMIUM_GIVEAWAY_PAGE, SUPPORTED_PAYMENT_METHODS, PaymentMethod
+from pyfragment.utils import get_account_info, parse_required_payment_amount, process_transaction
 
 if TYPE_CHECKING:
     from pyfragment.client import FragmentClient
 
 
 async def giveaway_premium(
-    client: "FragmentClient",
+    client: FragmentClient,
     channel: str,
     winners: int,
     months: int = 3,
+    payment_method: PaymentMethod = "ton",
 ) -> PremiumGiveawayResult:
     """Run a Telegram Premium giveaway for a channel.
 
     Args:
         client: Authenticated :class:`FragmentClient` instance.
-        channel: Channel username (with or without ``@``).
+        channel: Channel identifier — ``@channel``, ``channel``, or ``https://t.me/channel``.
         winners: Number of winners — integer from ``1`` to ``24 000``.
         months: Premium duration per winner — ``3``, ``6``, or ``12``. Defaults to ``3``.
+        payment_method: Payment currency — ``"ton"`` (default) or ``"usdt_ton"``.
 
     Returns:
         :class:`PremiumGiveawayResult` with ``transaction_id``, ``channel``,
@@ -47,6 +49,13 @@ async def giveaway_premium(
         raise ConfigurationError(ConfigurationError.INVALID_WINNERS_PREMIUM)
     if months not in (3, 6, 12):
         raise ConfigurationError(ConfigurationError.INVALID_MONTHS)
+    if payment_method not in SUPPORTED_PAYMENT_METHODS:
+        raise ConfigurationError(
+            ConfigurationError.INVALID_PAYMENT_METHOD.format(
+                method=payment_method,
+                supported=", ".join(sorted(SUPPORTED_PAYMENT_METHODS)),
+            )
+        )
 
     try:
         result = await client.call(
@@ -60,9 +69,15 @@ async def giveaway_premium(
 
         result = await client.call(
             "initGiveawayPremiumRequest",
-            {"recipient": recipient, "quantity": str(winners), "months": str(months)},
+            {
+                "recipient": recipient,
+                "quantity": str(winners),
+                "months": str(months),
+                "payment_method": payment_method,
+            },
             page_url=PREMIUM_GIVEAWAY_PAGE,
         )
+        required_payment_amount = parse_required_payment_amount(result)
         req_id = result.get("req_id")
         if not req_id:
             raise FragmentAPIError(FragmentAPIError.NO_REQUEST_ID.format(context="Premium giveaway"))
@@ -81,7 +96,12 @@ async def giveaway_premium(
         if transaction.get("need_verify"):
             raise VerificationError(VerificationError.KYC_REQUIRED)
 
-        tx_hash = await process_transaction(client, transaction)
+        tx_hash = await process_transaction(
+            client,
+            transaction,
+            payment_method=payment_method,
+            required_payment_amount=required_payment_amount,
+        )
         return PremiumGiveawayResult(
             transaction_id=tx_hash,
             channel=channel,

pyfragment/methods/giveaway_stars.py

@@ -12,26 +12,28 @@ from pyfragment.types import (
     UserNotFoundError,
     VerificationError,
 )
-from pyfragment.types.constants import DEVICE, STARS_GIVEAWAY_PAGE
-from pyfragment.utils import get_account_info, process_transaction
+from pyfragment.types.constants import DEVICE, STARS_GIVEAWAY_PAGE, SUPPORTED_PAYMENT_METHODS, PaymentMethod
+from pyfragment.utils import get_account_info, parse_required_payment_amount, process_transaction
 
 if TYPE_CHECKING:
     from pyfragment.client import FragmentClient
 
 
 async def giveaway_stars(
-    client: "FragmentClient",
+    client: FragmentClient,
     channel: str,
     winners: int,
     amount: int,
+    payment_method: PaymentMethod = "ton",
 ) -> StarsGiveawayResult:
     """Run a Telegram Stars giveaway for a channel.
 
     Args:
         client: Authenticated :class:`FragmentClient` instance.
-        channel: Channel username (with or without ``@``).
+        channel: Channel identifier — ``@channel``, ``channel``, or ``https://t.me/channel``.
         winners: Number of winners — integer from ``1`` to ``5``.
         amount: Stars each winner receives — integer from ``500`` to ``1 000 000``.
+        payment_method: Payment currency — ``"ton"`` (default) or ``"usdt_ton"``.
 
     Returns:
         :class:`StarsGiveawayResult` with ``transaction_id``, ``channel``,
@@ -47,6 +49,13 @@ async def giveaway_stars(
         raise ConfigurationError(ConfigurationError.INVALID_WINNERS_STARS)
     if not isinstance(amount, int) or not (500 <= amount <= 1_000_000):
         raise ConfigurationError(ConfigurationError.INVALID_STARS_PER_WINNER)
+    if payment_method not in SUPPORTED_PAYMENT_METHODS:
+        raise ConfigurationError(
+            ConfigurationError.INVALID_PAYMENT_METHOD.format(
+                method=payment_method,
+                supported=", ".join(sorted(SUPPORTED_PAYMENT_METHODS)),
+            )
+        )
 
     try:
         result = await client.call("searchStarsGiveawayRecipient", {"query": channel}, page_url=STARS_GIVEAWAY_PAGE)
@@ -56,9 +65,15 @@ async def giveaway_stars(
 
         result = await client.call(
             "initGiveawayStarsRequest",
-            {"recipient": recipient, "quantity": str(winners), "stars": str(amount)},
+            {
+                "recipient": recipient,
+                "quantity": str(winners),
+                "stars": str(amount),
+                "payment_method": payment_method,
+            },
             page_url=STARS_GIVEAWAY_PAGE,
         )
+        required_payment_amount = parse_required_payment_amount(result)
         req_id = result.get("req_id")
         if not req_id:
             raise FragmentAPIError(FragmentAPIError.NO_REQUEST_ID.format(context="Stars giveaway"))
@@ -77,7 +92,12 @@ async def giveaway_stars(
         if transaction.get("need_verify"):
             raise VerificationError(VerificationError.KYC_REQUIRED)
 
-        tx_hash = await process_transaction(client, transaction)
+        tx_hash = await process_transaction(
+            client,
+            transaction,
+            payment_method=payment_method,
+            required_payment_amount=required_payment_amount,
+        )
         return StarsGiveawayResult(
             transaction_id=tx_hash,
             channel=channel,

pyfragment/methods/purchase_premium.py

@@ -13,21 +13,28 @@ from pyfragment.types import (
     UserNotFoundError,
     VerificationError,
 )
-from pyfragment.types.constants import DEVICE, PREMIUM_PAGE
-from pyfragment.utils import get_account_info, process_transaction
+from pyfragment.types.constants import DEVICE, PREMIUM_PAGE, SUPPORTED_PAYMENT_METHODS, PaymentMethod
+from pyfragment.utils import get_account_info, parse_required_payment_amount, process_transaction
 
 if TYPE_CHECKING:
     from pyfragment.client import FragmentClient
 
 
-async def purchase_premium(client: "FragmentClient", username: str, months: int, show_sender: bool = True) -> PremiumResult:
+async def purchase_premium(
+    client: FragmentClient,
+    username: str,
+    months: int,
+    show_sender: bool = True,
+    payment_method: PaymentMethod = "ton",
+) -> PremiumResult:
     """Gift Telegram Premium to a user.
 
     Args:
         client: Authenticated :class:`FragmentClient` instance.
-        username: Recipient's Telegram username (with or without ``@``).
+        username: Recipient identifier — ``@username``, ``username``, or ``https://t.me/username``.
         months: Premium duration — ``3``, ``6``, or ``12``.
         show_sender: Show your name as the gift sender. Defaults to ``True``.
+        payment_method: Payment currency — ``"ton"`` (default) or ``"usdt_ton"``.
 
     Returns:
         :class:`PremiumResult` with ``transaction_id``, ``username``, and ``amount``.
@@ -40,6 +47,13 @@ async def purchase_premium(client: "FragmentClient", username: str, months: int,
     """
     if months not in (3, 6, 12):
         raise ConfigurationError(ConfigurationError.INVALID_MONTHS)
+    if payment_method not in SUPPORTED_PAYMENT_METHODS:
+        raise ConfigurationError(
+            ConfigurationError.INVALID_PAYMENT_METHOD.format(
+                method=payment_method,
+                supported=", ".join(sorted(SUPPORTED_PAYMENT_METHODS)),
+            )
+        )
 
     try:
         result = await client.call("searchPremiumGiftRecipient", {"query": username, "months": months}, page_url=PREMIUM_PAGE)
@@ -52,7 +66,12 @@ async def purchase_premium(client: "FragmentClient", username: str, months: int,
             {"mode": "new", "lv": "false", "dh": str(int(time.time()))},
             page_url=PREMIUM_PAGE,
         )
-        result = await client.call("initGiftPremiumRequest", {"recipient": recipient, "months": months}, page_url=PREMIUM_PAGE)
+        result = await client.call(
+            "initGiftPremiumRequest",
+            {"recipient": recipient, "months": months, "payment_method": payment_method},
+            page_url=PREMIUM_PAGE,
+        )
+        required_payment_amount = parse_required_payment_amount(result)
         req_id = result.get("req_id")
         if not req_id:
             raise FragmentAPIError(FragmentAPIError.NO_REQUEST_ID.format(context="Premium purchase"))
@@ -72,7 +91,12 @@ async def purchase_premium(client: "FragmentClient", username: str, months: int,
         if transaction.get("need_verify"):
             raise VerificationError(VerificationError.KYC_REQUIRED)
 
-        tx_hash = await process_transaction(client, transaction)
+        tx_hash = await process_transaction(
+            client,
+            transaction,
+            payment_method=payment_method,
+            required_payment_amount=required_payment_amount,
+        )
         return PremiumResult(transaction_id=tx_hash, username=username, amount=months)
 
     except FragmentError:

pyfragment/methods/purchase_stars.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import json
+import time
 from typing import TYPE_CHECKING
 
 from pyfragment.types import (
@@ -12,21 +13,24 @@ from pyfragment.types import (
     UserNotFoundError,
     VerificationError,
 )
-from pyfragment.types.constants import DEVICE, STARS_PAGE
-from pyfragment.utils import get_account_info, process_transaction
+from pyfragment.types.constants import DEVICE, STARS_PAGE, SUPPORTED_PAYMENT_METHODS, PaymentMethod
+from pyfragment.utils import get_account_info, parse_required_payment_amount, process_transaction
 
 if TYPE_CHECKING:
     from pyfragment.client import FragmentClient
 
 
-async def purchase_stars(client: "FragmentClient", username: str, amount: int, show_sender: bool = True) -> StarsResult:
+async def purchase_stars(
+    client: FragmentClient, username: str, amount: int, show_sender: bool = True, payment_method: PaymentMethod = "ton"
+) -> StarsResult:
     """Send Telegram Stars to a user.
 
     Args:
         client: Authenticated :class:`FragmentClient` instance.
-        username: Recipient's Telegram username (with or without ``@``).
+        username: Recipient identifier — ``@username``, ``username``, or ``https://t.me/username``.
         amount: Number of Stars to send — integer from ``50`` to ``1 000 000``.
         show_sender: Show your name as the gift sender. Defaults to ``True``.
+        payment_method: Payment currency — ``"ton"`` (default) or ``"usdt_ton"``.
 
     Returns:
         :class:`StarsResult` with ``transaction_id``, ``username``, and ``amount``.
@@ -39,6 +43,13 @@ async def purchase_stars(client: "FragmentClient", username: str, amount: int, s
     """
     if not isinstance(amount, int) or not (50 <= amount <= 1_000_000):
         raise ConfigurationError(ConfigurationError.INVALID_STARS_AMOUNT)
+    if payment_method not in SUPPORTED_PAYMENT_METHODS:
+        raise ConfigurationError(
+            ConfigurationError.INVALID_PAYMENT_METHOD.format(
+                method=payment_method,
+                supported=", ".join(sorted(SUPPORTED_PAYMENT_METHODS)),
+            )
+        )
 
     try:
         result = await client.call("searchStarsRecipient", {"query": username, "quantity": ""}, page_url=STARS_PAGE)
@@ -46,7 +57,17 @@ async def purchase_stars(client: "FragmentClient", username: str, amount: int, s
         if not recipient:
             raise UserNotFoundError(UserNotFoundError.NOT_FOUND.format(username=username))
 
-        result = await client.call("initBuyStarsRequest", {"recipient": recipient, "quantity": amount}, page_url=STARS_PAGE)
+        await client.call(
+            "updateStarsBuyState",
+            {"mode": "new", "lv": "false", "dh": str(int(time.time()))},
+            page_url=STARS_PAGE,
+        )
+        result = await client.call(
+            "initBuyStarsRequest",
+            {"recipient": recipient, "quantity": amount, "payment_method": payment_method},
+            page_url=STARS_PAGE,
+        )
+        required_payment_amount = parse_required_payment_amount(result)
         req_id = result.get("req_id")
         if not req_id:
             raise FragmentAPIError(FragmentAPIError.NO_REQUEST_ID.format(context="Stars purchase"))
@@ -66,7 +87,12 @@ async def purchase_stars(client: "FragmentClient", username: str, amount: int, s
         if transaction.get("need_verify"):
             raise VerificationError(VerificationError.KYC_REQUIRED)
 
-        tx_hash = await process_transaction(client, transaction)
+        tx_hash = await process_transaction(
+            client,
+            transaction,
+            payment_method=payment_method,
+            required_payment_amount=required_payment_amount,
+        )
         return StarsResult(transaction_id=tx_hash, username=username, amount=amount)
 
     except FragmentError:

pyfragment/methods/recharge_ads.py

@@ -18,7 +18,7 @@ if TYPE_CHECKING:
     from pyfragment.client import FragmentClient
 
 
-async def recharge_ads(client: "FragmentClient", account: str, amount: int) -> AdsRechargeResult:
+async def recharge_ads(client: FragmentClient, account: str, amount: int) -> AdsRechargeResult:
     """Add funds to your own Telegram Ads account.
 
     Args:

pyfragment/methods/search_gifts.py

@@ -11,7 +11,7 @@ if TYPE_CHECKING:
 
 
 async def search_gifts(
-    client: "FragmentClient",
+    client: FragmentClient,
     query: str = "",
     collection: str | None = None,
     sort: str | None = None,
@@ -45,7 +45,7 @@ async def search_gifts(
         FragmentAPIError: If the Fragment API returns an error.
         UnexpectedError: For any other unexpected failure.
     """
-    data: dict[str, Any] = {"method": "searchAuctions", "type": "gifts", "query": query}
+    data: dict[str, Any] = {"type": "gifts", "query": query}
     if collection is not None:
         data["collection"] = collection
     if sort is not None:

pyfragment/methods/search_numbers.py

@@ -11,7 +11,7 @@ if TYPE_CHECKING:
 
 
 async def search_numbers(
-    client: "FragmentClient",
+    client: FragmentClient,
     query: str = "",
     sort: str | None = None,
     filter: str | None = None,
@@ -37,7 +37,7 @@ async def search_numbers(
         FragmentAPIError: If the Fragment API returns an error.
         UnexpectedError: For any other unexpected failure.
     """
-    data: dict[str, Any] = {"method": "searchAuctions", "type": "numbers", "query": query}
+    data: dict[str, Any] = {"type": "numbers", "query": query}
     if sort is not None:
         data["sort"] = sort
     if filter is not None:

pyfragment/methods/search_usernames.py

@@ -11,7 +11,7 @@ if TYPE_CHECKING:
 
 
 async def search_usernames(
-    client: "FragmentClient",
+    client: FragmentClient,
     query: str = "",
     sort: str | None = None,
     filter: str | None = None,
@@ -37,7 +37,7 @@ async def search_usernames(
         FragmentAPIError: If the Fragment API returns an error.
         UnexpectedError: For any other unexpected failure.
     """
-    data: dict[str, Any] = {"method": "searchAuctions", "type": "usernames", "query": query}
+    data: dict[str, Any] = {"type": "usernames", "query": query}
     if sort is not None:
         data["sort"] = sort
     if filter is not None:

pyfragment/methods/topup_ton.py

@@ -19,7 +19,7 @@ if TYPE_CHECKING:
     from pyfragment.client import FragmentClient
 
 
-async def topup_ton(client: "FragmentClient", username: str, amount: int, show_sender: bool = True) -> AdsTopupResult:
+async def topup_ton(client: FragmentClient, username: str, amount: int, show_sender: bool = True) -> AdsTopupResult:
     """Top up TON to a recipient's Telegram balance.
 
     Args:

pyfragment/types/__init__.py

@@ -1,3 +1,4 @@
+from pyfragment.types.constants import PaymentMethod
 from pyfragment.types.exceptions import (
     AnonymousNumberError,
     ClientError,
@@ -61,4 +62,6 @@ __all__ = [
     "TerminateSessionsResult",
     "UsernamesResult",
     "WalletInfo",
+    # literal types
+    "PaymentMethod",
 ]

pyfragment/types/constants.py

@@ -5,6 +5,10 @@ from typing import Any, Literal, get_args
 
 from tonutils.contracts.wallet import WalletV4R2, WalletV5R1
 
+# Payment methods
+PaymentMethod = Literal["ton", "usdt_ton"]
+SUPPORTED_PAYMENT_METHODS: frozenset[str] = frozenset(get_args(PaymentMethod))
+
 # Single source of truth for supported wallet versions
 WalletVersion = Literal["V4R2", "V5R1"]
 SUPPORTED_WALLET_VERSIONS: frozenset[str] = frozenset(get_args(WalletVersion))
@@ -12,8 +16,12 @@ SUPPORTED_WALLET_VERSIONS: frozenset[str] = frozenset(get_args(WalletVersion))
 # Wallet class map — used to resolve the correct contract from WALLET_VERSION
 WALLET_CLASSES: dict[str, Any] = {"V4R2": WalletV4R2, "V5R1": WalletV5R1}
 
-# Minimum wallet balance required to cover TON network gas fees.
-MIN_TON_BALANCE: float = 0.056
+# Minimum TON balance threshold required for payment flows.
+MIN_TON_BALANCE: float = 0.33
+
+# USDT (TON) jetton metadata used for payment-method balance checks.
+USDT_TON_MASTER_ADDRESS: str = "EQCxE6mUtQJKFnGfaROTKOt1lZbDiiX1kCixRv7Nw2Id_sDs"
+MIN_USDT_BALANCE: float = 0.75
 
 # Default HTTP request timeout in seconds.
 DEFAULT_TIMEOUT: float = 30.0
@@ -74,12 +82,15 @@ BASE_HEADERS: dict[str, str] = {
     "content-type": "application/x-www-form-urlencoded; charset=UTF-8",
     "origin": FRAGMENT_BASE_URL,
     "priority": "u=1, i",
+    "sec-ch-ua": '"Google Chrome";v="147", "Not.A/Brand";v="8", "Chromium";v="147"',
+    "sec-ch-ua-mobile": "?1",
+    "sec-ch-ua-platform": '"Android"',
     "sec-fetch-dest": "empty",
     "sec-fetch-mode": "cors",
     "sec-fetch-site": "same-origin",
     "user-agent": (
-        "Mozilla/5.0 (iPhone; CPU iPhone OS 18_5 like Mac OS X) "
-        "AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Mobile/15E148 Safari/604.1"
+        "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) "
+        "AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Mobile Safari/537.36"
     ),
     "x-requested-with": "XMLHttpRequest",
 }

pyfragment/types/exceptions.py

@@ -16,7 +16,7 @@ class ConfigurationError(ClientError):
     UNSUPPORTED_VERSION = "Unsupported wallet_version '{version}'. Must be one of: {supported}."
     INVALID_MNEMONIC = "Invalid mnemonic: expected 12, 18, or 24 words, got {count}."
     INVALID_API_KEY = (
-        "Invalid Tonapi API key: expected at least 68 characters, got {length}. " "Generate a key at https://tonconsole.com."
+        "Invalid Tonapi API key: expected at least 68 characters, got {length}. Generate a key at https://tonconsole.com."
     )
     INVALID_MONTHS = "Invalid Premium duration: choose 3, 6, or 12 months."
     INVALID_STARS_AMOUNT = "Invalid Stars amount: must be an integer between 50 and 1 000 000."
@@ -28,6 +28,7 @@ class ConfigurationError(ClientError):
     INVALID_WINNERS_STARS = "Invalid winners count: must be an integer between 1 and 5."
     INVALID_WINNERS_PREMIUM = "Invalid winners count: must be an integer between 1 and 24 000."
     INVALID_STARS_PER_WINNER = "Invalid Stars per winner: must be an integer between 500 and 1 000 000."
+    INVALID_PAYMENT_METHOD = "Invalid payment method '{method}'. Supported values: {supported}."
 
 
 class CookieError(ClientError):
@@ -40,12 +41,13 @@ class CookieError(ClientError):
     )
     UNSUPPORTED_BROWSER = "Unsupported browser: '{browser}'. Supported: {supported}."
     BROWSER_READ_FAILED = (
-        "Failed to read {browser} cookies: {exc}. " "Make sure {browser} is installed and you are logged in to {url}."
+        "Failed to read {browser} cookies: {exc}. Make sure {browser} is installed and you are logged in to {url}."
     )
     MISSING_BROWSER_KEYS = (
         "Fragment cookies not found in {browser}: {keys}. "
         "Make sure you are logged in to {url} and have connected your TON wallet in {browser}."
     )
+    EXPIRED = "Fragment session cookie expired at {expires}. Log in to fragment.com in your browser and extract fresh cookies."
 
 
 class FragmentAPIError(FragmentError):
@@ -74,7 +76,7 @@ class UserNotFoundError(FragmentAPIError):
     """Raised when the target Telegram user is not found on Fragment."""
 
     NOT_FOUND = (
-        "Telegram user '{username}' was not found on Fragment. " "Double-check the username and make sure the account exists."
+        "Telegram user '{username}' was not found on Fragment. Double-check the username and make sure the account exists."
     )
 
 
@@ -89,7 +91,7 @@ class TransactionError(FragmentAPIError):
     """Raised when a TON transaction fails to build or broadcast."""
 
     INVALID_PAYLOAD = (
-        "Fragment returned an invalid transaction payload — " "'transaction.messages' is missing or empty in the API response."
+        "Fragment returned an invalid transaction payload — 'transaction.messages' is missing or empty in the API response."
     )
     BROADCAST_FAILED = "Transaction broadcast failed: {exc}"
     BROADCAST_FAILED_SSL = (
@@ -129,11 +131,10 @@ class OperationError(FragmentError):
 class WalletError(OperationError):
     """Raised for TON wallet issues (connection, balance, account info)."""
 
-    LOW_BALANCE = (
-        "Insufficient TON balance: {balance:.4f} TON available, {required:.4f} TON required "
-        "(transaction amount + {gas:.3f} TON gas reserve)."
-    )
-    BALANCE_CHECK_FAILED = "Failed to fetch wallet balance: {exc}"
+    LOW_TON_BALANCE = "Insufficient TON balance: {balance:.4f} TON available, {required:.4f} TON required."
+    LOW_USDT_BALANCE = "Insufficient USDT balance: {balance:.4f} USDT available, {required:.4f} USDT required."
+    TON_BALANCE_CHECK_FAILED = "Failed to fetch TON balance: {exc}"
+    USDT_BALANCE_CHECK_FAILED = "Failed to fetch USDT balance: {exc}"
     ACCOUNT_INFO_FAILED = "Failed to retrieve wallet account info from TON network: {exc}"
     WALLET_INFO_FAILED = "Failed to retrieve wallet info from TON network: {exc}"
 

pyfragment/types/results.py

@@ -27,10 +27,14 @@ class WalletInfo:
 
     address: str
     state: str
-    balance: float
+    ton_balance: float
+    usdt_balance: float
 
     def __repr__(self) -> str:
-        return f"WalletInfo(address='{self.address}', state='{self.state}', balance={self.balance} TON)"
+        return (
+            f"WalletInfo(address='{self.address}', state='{self.state}', "
+            f"ton_balance={self.ton_balance} TON, usdt_balance={self.usdt_balance} USDT)"
+        )
 
 
 @dataclass

pyfragment/utils/__init__.py

@@ -1,6 +1,6 @@
 from pyfragment.utils.cookies import CookieResult, get_cookies_from_browser
 from pyfragment.utils.decoder import clean_decode
-from pyfragment.utils.html import parse_auction_rows, parse_gift_items, parse_login_code
+from pyfragment.utils.html import parse_auction_rows, parse_gift_items, parse_login_code, parse_required_payment_amount
 from pyfragment.utils.http import (
     execute_transaction_request,
     fragment_request,
@@ -17,6 +17,7 @@ __all__ = [
     "parse_auction_rows",
     "parse_gift_items",
     "parse_login_code",
+    "parse_required_payment_amount",
     "execute_transaction_request",
     "fragment_request",
     "get_account_info",

pyfragment/utils/cookies.py

@@ -1,10 +1,12 @@
 from __future__ import annotations
 
 from datetime import datetime, timezone
+from typing import Any
 
 import rookiepy
 
-from pyfragment.types import CookieError, CookieResult
+from pyfragment.types import CookieError
+from pyfragment.types import CookieResult as CookieResult
 from pyfragment.types.constants import FRAGMENT_BASE_URL, FRAGMENT_DOMAIN, REQUIRED_COOKIE_KEYS, SUPPORTED_BROWSERS
 
 
@@ -34,7 +36,7 @@ def get_cookies_from_browser(browser: str = "chrome") -> CookieResult:
         raise CookieError(CookieError.UNSUPPORTED_BROWSER.format(browser=browser, supported=supported))
 
     try:
-        jar: list[dict] = getattr(rookiepy, key)([FRAGMENT_DOMAIN])
+        jar: list[dict[str, Any]] = getattr(rookiepy, key)([FRAGMENT_DOMAIN])
     except Exception as exc:
         raise CookieError(CookieError.BROWSER_READ_FAILED.format(browser=browser, exc=exc, url=FRAGMENT_BASE_URL)) from exc
 
@@ -59,6 +61,11 @@ def get_cookies_from_browser(browser: str = "chrome") -> CookieResult:
                         continue
             break
 
+    if expires_iso:
+        expires_dt = datetime.fromisoformat(expires_iso)
+        if expires_dt < datetime.now(timezone.utc):
+            raise CookieError(CookieError.EXPIRED.format(expires=expires_iso))
+
     return CookieResult(
         cookies={k: cookie_map[k] for k in REQUIRED_COOKIE_KEYS},
         expires=expires_iso,

pyfragment/utils/decoder.py

@@ -7,7 +7,7 @@ from ton_core import Cell
 from pyfragment.types import ParseError
 
 
-def clean_decode(payload: str) -> str:
+def clean_decode(payload: str) -> str | Cell:
     """Decode a base64-encoded BOC payload to a plain-text comment string.
 
     Fragment transaction payloads are BOC-serialised TVM cells. This function
@@ -18,7 +18,8 @@ def clean_decode(payload: str) -> str:
         payload: Base64url-encoded BOC string (padding is added automatically).
 
     Returns:
-        Decoded comment string, or ``""`` for an empty payload.
+        Decoded comment string, ``""`` for an empty payload, or raw ``Cell``
+        when payload is a non-UTF8 binary body.
 
     Raises:
         ParseError: If the payload cannot be decoded or parsed.
@@ -28,10 +29,15 @@ def clean_decode(payload: str) -> str:
         return ""
     s += "=" * (-len(s) % 4)
     try:
-        boc = base64.b64decode(s)
+        # Fragment may return URL-safe base64 ("-"/"_") in transaction payloads.
+        boc = base64.b64decode(s, altchars=b"-_", validate=True)
         cell = Cell.one_from_boc(boc)
         sl = cell.begin_parse()
-        sl.load_uint(32)  # op code — always 0 for text comment
-        return sl.load_snake_string().strip()
+        sl.load_uint(32)  # op code
+        try:
+            return sl.load_snake_string().strip()
+        except UnicodeDecodeError:
+            # Some Fragment payloads are binary TVM cells rather than text comments.
+            return cell
     except Exception as exc:
         raise ParseError(ParseError.UNPARSEABLE.format(context="payload decode", exc=exc)) from exc

pyfragment/utils/html.py

@@ -161,3 +161,12 @@ def parse_gift_items(html: str) -> tuple[list[dict[str, Any]], int | None]:
     next_offset = int(next_offset_m.group(1)) if next_offset_m else None
 
     return items, next_offset
+
+
+def parse_required_payment_amount(init_response: dict[str, Any]) -> float | None:
+    """Extract required payment amount from init*Request response."""
+    raw_amount = init_response.get("amount")
+    try:
+        return float(str(raw_amount))
+    except (TypeError, ValueError):
+        return None

pyfragment/utils/http.py

@@ -1,7 +1,9 @@
 from __future__ import annotations
 
+import asyncio
+import random
 import re
-from typing import Any
+from typing import Any, cast
 
 import httpx
 
@@ -80,7 +82,7 @@ def parse_json_response(response: httpx.Response, context: str) -> dict[str, Any
         ParseError: If the response body cannot be decoded as JSON.
     """
     try:
-        return response.json()
+        return cast(dict[str, Any], response.json())
     except Exception as exc:
         raise ParseError(ParseError.UNPARSEABLE.format(context=context, exc=exc)) from exc
 
@@ -106,12 +108,21 @@ async def fragment_request(
     Returns:
         Parsed API response as a dict.
     """
-    resp = await session.post(
-        f"{FRAGMENT_BASE_URL}/api?hash={fragment_hash}",
-        headers=headers,
-        data=data,
-    )
-    return parse_json_response(resp, data.get("method", "request"))
+    for attempt in range(3):
+        resp = await session.post(
+            f"{FRAGMENT_BASE_URL}/api?hash={fragment_hash}",
+            headers=headers,
+            data=data,
+        )
+        if resp.status_code == 429 and attempt < 2:
+            await asyncio.sleep(1 + attempt + random.uniform(0, 0.5))
+            continue
+        if resp.status_code != 200:
+            raise FragmentPageError(
+                FragmentPageError.BAD_STATUS.format(status=resp.status_code, url=f"{FRAGMENT_BASE_URL}/api")
+            )
+        return parse_json_response(resp, data.get("method", "request"))
+    raise FragmentPageError(FragmentPageError.BAD_STATUS.format(status=429, url=f"{FRAGMENT_BASE_URL}/api"))
 
 
 async def execute_transaction_request(

pyfragment/utils/wallet.py

@@ -2,22 +2,97 @@ from __future__ import annotations
 
 import asyncio
 import base64
+import random
 import ssl
 from typing import TYPE_CHECKING, Any
 
 from ton_core import NetworkGlobalID
 from tonutils.clients import TonapiClient
+from tonutils.contracts.jetton import get_wallet_address_get_method, get_wallet_data_get_method
 from tonutils.exceptions import ProviderResponseError
 
 from pyfragment.types import TransactionError, WalletError, WalletInfo
-from pyfragment.types.constants import MIN_TON_BALANCE, WALLET_CLASSES
+from pyfragment.types.constants import (
+    MIN_TON_BALANCE,
+    MIN_USDT_BALANCE,
+    USDT_TON_MASTER_ADDRESS,
+    WALLET_CLASSES,
+    PaymentMethod,
+)
 from pyfragment.utils.decoder import clean_decode
 
 if TYPE_CHECKING:
     from pyfragment.client import FragmentClient
 
 
-async def process_transaction(client: "FragmentClient", transaction_data: dict[str, Any]) -> str:
+async def _get_usdt_balance(ton: Any, wallet_address: str) -> float:
+    """Return wallet USDT balance via tonutils jetton get-methods."""
+    try:
+        jetton_wallet_address = await get_wallet_address_get_method(
+            client=ton,
+            address=USDT_TON_MASTER_ADDRESS,
+            owner_address=wallet_address,
+        )
+        wallet_data = await get_wallet_data_get_method(client=ton, address=jetton_wallet_address)
+        raw_balance = int(wallet_data[0]) if wallet_data else 0
+        return float(raw_balance) / 1_000_000.0
+    except ProviderResponseError as exc:
+        # No jetton wallet deployed yet -> effectively zero USDT balance.
+        if exc.code == 404:
+            return 0.0
+        raise WalletError(WalletError.USDT_BALANCE_CHECK_FAILED.format(exc=exc)) from exc
+    except Exception as exc:
+        raise WalletError(WalletError.USDT_BALANCE_CHECK_FAILED.format(exc=exc)) from exc
+
+
+async def _check_ton_payment_balance(
+    balance_ton: float,
+    amount_ton: float,
+    required_payment_amount: float | None,
+) -> None:
+    """Validate balance requirements for TON payment method."""
+    tx_price_ton = amount_ton
+    if required_payment_amount is not None and required_payment_amount > 0:
+        tx_price_ton = max(tx_price_ton, required_payment_amount)
+
+    required_ton = max(tx_price_ton, MIN_TON_BALANCE)
+    if balance_ton < required_ton:
+        raise WalletError(
+            WalletError.LOW_TON_BALANCE.format(
+                balance=balance_ton,
+                required=required_ton,
+            )
+        )
+
+
+async def _check_usdt_payment_balance(
+    balance_ton: float,
+    required_payment_amount: float | None,
+    ton: Any,
+    wallet_address: str,
+) -> None:
+    """Validate balance requirements for USDT payment method."""
+    # USDT payment still needs TON for network fees.
+    if balance_ton < MIN_TON_BALANCE:
+        raise WalletError(
+            WalletError.LOW_TON_BALANCE.format(
+                balance=balance_ton,
+                required=MIN_TON_BALANCE,
+            )
+        )
+
+    usdt_balance = await _get_usdt_balance(ton, wallet_address)
+    required_usdt = required_payment_amount if required_payment_amount is not None else MIN_USDT_BALANCE
+    if usdt_balance < required_usdt:
+        raise WalletError(WalletError.LOW_USDT_BALANCE.format(balance=usdt_balance, required=required_usdt))
+
+
+async def process_transaction(
+    client: FragmentClient,
+    transaction_data: dict[str, Any],
+    payment_method: PaymentMethod = "ton",
+    required_payment_amount: float | None = None,
+) -> str:
     """Sign and broadcast a Fragment transaction to the TON network.
 
     Validates the payload structure, checks the wallet balance, decodes the
@@ -26,6 +101,8 @@ async def process_transaction(client: "FragmentClient", transaction_data: dict[s
     Args:
         client: Authenticated :class:`FragmentClient` instance.
         transaction_data: Raw transaction dict from ``execute_transaction_request``.
+        payment_method: Payment currency — ``"ton"`` or ``"usdt_ton"``.
+        required_payment_amount: Optional price from init*Request response.
 
     Returns:
         Normalised transaction hash string.
@@ -34,7 +111,7 @@ async def process_transaction(client: "FragmentClient", transaction_data: dict[s
         TransactionError: If the payload is malformed or the broadcast fails.
         WalletError: If the wallet balance is too low or cannot be fetched.
     """
-    if "transaction" not in transaction_data or "messages" not in transaction_data["transaction"]:
+    if "transaction" not in transaction_data or not transaction_data["transaction"].get("messages"):
         raise TransactionError(TransactionError.INVALID_PAYLOAD)
 
     message = transaction_data["transaction"]["messages"][0]
@@ -44,20 +121,32 @@ async def process_transaction(client: "FragmentClient", transaction_data: dict[s
         wallet_cls = WALLET_CLASSES[client.wallet_version]
         wallet, _, _, _ = wallet_cls.from_mnemonic(client=ton, mnemonic=client.seed)
 
-        # Check balance covers transaction amount + gas reserve
+        # Check balance covers selected payment flow requirements.
         try:
             await wallet.refresh()
             balance_ton = wallet.balance / 1_000_000_000
-            required = amount_ton + MIN_TON_BALANCE
-            if balance_ton < required:
-                raise WalletError(WalletError.LOW_BALANCE.format(balance=balance_ton, required=required, gas=MIN_TON_BALANCE))
+            wallet_address = wallet.address.to_str(False, False)
+            if payment_method == "ton":
+                await _check_ton_payment_balance(
+                    balance_ton,
+                    amount_ton,
+                    required_payment_amount,
+                )
+            else:
+                await _check_usdt_payment_balance(
+                    balance_ton,
+                    required_payment_amount,
+                    ton,
+                    wallet_address,
+                )
         except WalletError:
             raise
         except Exception as exc:
-            raise WalletError(WalletError.BALANCE_CHECK_FAILED.format(exc=exc)) from exc
+            raise WalletError(WalletError.TON_BALANCE_CHECK_FAILED.format(exc=exc)) from exc
 
         try:
-            payload = clean_decode(message["payload"])
+            raw_payload = str(message.get("payload", ""))
+            payload = clean_decode(raw_payload)
 
             for attempt in range(3):
                 try:
@@ -66,15 +155,15 @@ async def process_transaction(client: "FragmentClient", transaction_data: dict[s
                         amount=int(message["amount"]),  # nanotons, not TON
                         body=payload,
                     )
-                    return result.normalized_hash
+                    return str(result.normalized_hash)
                 except ProviderResponseError as exc:
                     if exc.code == 429 and attempt == 0:
-                        await asyncio.sleep(1)
+                        await asyncio.sleep(1 + random.uniform(0, 0.5))
                         continue
                     if exc.code == 406 and "seqno" in str(exc).lower():
                         # Previous tx seqno not yet confirmed — wallet will re-fetch seqno on retry
                         if attempt < 2:
-                            await asyncio.sleep(2)
+                            await asyncio.sleep(2 + random.uniform(0, 1))
                             continue
                         raise TransactionError(TransactionError.DUPLICATE_SEQNO) from exc
                     raise
@@ -91,7 +180,7 @@ async def process_transaction(client: "FragmentClient", transaction_data: dict[s
     raise TransactionError(TransactionError.BROADCAST_FAILED.format(exc="transfer loop exited without result"))
 
 
-async def get_account_info(client: "FragmentClient") -> dict[str, Any]:
+async def get_account_info(client: FragmentClient) -> dict[str, Any]:
     """Fetch wallet address, public key, and state-init for the Fragment API.
 
     Fragment requires account info to build each transaction payload. The
@@ -122,14 +211,15 @@ async def get_account_info(client: "FragmentClient") -> dict[str, Any]:
             raise WalletError(WalletError.ACCOUNT_INFO_FAILED.format(exc=exc)) from exc
 
 
-async def get_wallet_info(client: "FragmentClient") -> "WalletInfo":
+async def get_wallet_info(client: FragmentClient) -> WalletInfo:
     """Return the address, state and balance of the TON wallet.
 
     Args:
         client: Authenticated :class:`FragmentClient` instance.
 
     Returns:
-        :class:`WalletInfo` with ``address``, ``state``, and ``balance`` in TON.
+        :class:`WalletInfo` with ``address``, ``state``, ``balance`` in TON,
+        and ``usdt_balance`` in USDT.
 
     Raises:
         WalletError: If the wallet state cannot be fetched.
@@ -139,10 +229,13 @@ async def get_wallet_info(client: "FragmentClient") -> "WalletInfo":
             wallet_cls = WALLET_CLASSES[client.wallet_version]
             wallet, _, _, _ = wallet_cls.from_mnemonic(client=ton, mnemonic=client.seed)
             await wallet.refresh()
+            wallet_address = wallet.address.to_str(False, False)
+            usdt_balance = await _get_usdt_balance(ton, wallet_address)
             return WalletInfo(
                 address=wallet.address.to_str(is_user_friendly=True, is_bounceable=False),
                 state=wallet.state.value,
-                balance=round(wallet.balance / 1_000_000_000, 4),
+                ton_balance=round(wallet.balance / 1_000_000_000, 4),
+                usdt_balance=round(usdt_balance, 4),
             )
         except Exception as exc:
             raise WalletError(WalletError.WALLET_INFO_FAILED.format(exc=exc)) from exc

pyproject.toml

@@ -4,44 +4,60 @@ build-backend = "hatchling.build"
 
 [project]
 name = "pyfragment"
-version = "2026.2.0"
-description = "Async Python client for the Fragment API — a unified toolkit to manage Telegram assets: purchase Stars and Premium, top up TON and Ads balances, run giveaways, manage anonymous numbers, and explore the marketplace for usernames, numbers, and gifts."
+version = "2026.2.2"
+description = "Async Python client for the Fragment API. Buy Stars and Premium, top up TON and Ads balances, run giveaways, manage anonymous numbers, and search Fragment listings."
 readme = "README.md"
 license = { text = "MIT" }
 requires-python = ">=3.10"
-authors = [{ name = "bohd4nx", url = "https://github.com/bohd4nx" }]
-keywords = ["fragment", "telegram", "ton", "stars", "premium", "crypto", "blockchain"]
+authors = [{ name = "bohd4nx" }]
+keywords = [
+    "fragment",
+    "fragment-api",
+    "telegram",
+    "telegram-api",
+    "telegram-stars",
+    "telegram-premium",
+    "telegram-giveaway",
+    "telegram-ads",
+    "ton",
+    "ton-blockchain",
+    "tonkeeper",
+    "tonapi",
+    "anonymous-numbers",
+    "username-auctions",
+    "gift-marketplace",
+    "crypto-payments",
+    "nft-marketplace",
+    "web3",
+    "python-client",
+    "typed",
+    "asyncio",
+]
 classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Intended Audience :: Developers",
+    "Intended Audience :: Financial and Insurance Industry",
     "License :: OSI Approved :: MIT License",
     "Natural Language :: English",
     "Operating System :: OS Independent",
+    "Programming Language :: Python",
     "Programming Language :: Python :: 3 :: Only",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Framework :: AsyncIO",
+    "Topic :: Software Development :: Libraries",
     "Topic :: Software Development :: Libraries :: Python Modules",
     "Topic :: Internet",
+    "Topic :: Internet :: WWW/HTTP",
     "Topic :: Office/Business :: Financial",
+    "Topic :: Office/Business :: Financial :: Investment",
     "Typing :: Typed",
 ]
-dependencies = [
-    "httpx==0.28.1",
-    "rookiepy==0.5.6",
-    "tonutils==2.1.0",
-]
+dependencies = ["httpx>=0.25", "rookiepy>=0.5.6", "tonutils>=2.0.1"]
 
 [project.optional-dependencies]
-dev = [
-    "pytest==9.0.3",
-    "pytest-asyncio==1.3.0",
-    "pytest-mock",
-    "mypy",
-    "ruff",
-    "black",
-]
+dev = ["pytest", "pytest-asyncio", "pytest-mock", "mypy", "ruff"]
 
 [project.urls]
 Homepage = "https://github.com/bohd4nx/pyfragment"
@@ -53,24 +69,27 @@ Changelog = "https://github.com/bohd4nx/pyfragment/blob/master/CHANGELOG.md"
 packages = ["pyfragment"]
 
 [tool.pytest.ini_options]
-testpaths    = ["tests"]
+testpaths = ["tests"]
 python_files = ["[0-9][0-9][0-9]_test_*.py"]
 asyncio_mode = "auto"
-addopts      = "-v --tb=short"
-
-[tool.black]
-line-length = 128
-target-version = ["py312"]
+addopts = "-v --tb=short"
 
 [tool.ruff]
 line-length = 128
 target-version = "py312"
 
 [tool.ruff.lint]
-# E — pycodestyle errors, F — pyflakes, W — warnings, I — isort
-select = ["E", "F", "W", "I"]
-ignore = ["E501"]
+# E — pycodestyle errors, F — pyflakes, W — warnings, I — isort, UP — pyupgrade
+select = ["E", "F", "W", "I", "UP"]
+# E501 — line too long (covered by line-length above)
+# UP017 — use datetime.UTC (only available in Python 3.11+, we support 3.10)
+ignore = ["E501", "UP017"]
 
 [tool.ruff.lint.per-file-ignores]
 "tests/*" = ["E402"]
 "systests/*" = ["E402"]
+
+[tool.mypy]
+python_version = "3.10"
+strict = true
+exclude = ["^systests/", "^examples/"]

requirements-dev.txt

@@ -1 +0,0 @@
--e .[dev]

requirements.txt

@@ -1 +0,0 @@
--e .

tests/001_test_decode.py

@@ -1,37 +1,62 @@
 """Tests for clean_decode() — TON BOC payload decoding."""
 
+import base64
 import re
+from unittest.mock import patch
 
 import pytest
+from ton_core import Cell
 
 from pyfragment.types import ParseError
 from pyfragment.utils.decoder import clean_decode
 
-PAYLOADS = [
+PAYLOAD_CASES = [
     pytest.param(
         "te6ccgEBAgEALwABTgAAAAAxMDAwMDAwIFRlbGVncmFtIFN0YXJzIAoKUmVmI1RQb01wegEABkM3ZQ",
+        True,
         id="stars",
     ),
     pytest.param(
         "te6ccgEBAgEANAABTgAAAABUZWxlZ3JhbSBQcmVtaXVtIGZvciAxIHllYXIgCgpSZWYjcgEAEE9OQnM2cmNt",
+        True,
         id="premium",
     ),
     pytest.param(
         "te6ccgEBAgEAMAABTgAAAABUZWxlZ3JhbSBhY2NvdW50IHRvcCB1cCAKClJlZiNrMXpDRQEACFkxd3g",
+        True,
         id="topup",
     ),
+    pytest.param(
+        "te6ccgEBAgEAfgABqA-KfqVP885dhccidjC3GwgBCkiH8LM_zUu0afyGCTWJwX1mDjdlf2rMa9UoQlD4UHUAF1jLlcMomlo5RJTwl8jnDDdfdhc7EgQQWPqFQ9IjyLPCAwEASgAAAAA1MCBUZWxlZ3JhbSBTdGFycyAKClJlZiNtOUpoWndBcFE",
+        False,
+        id="real_stars_50",
+    ),
+    pytest.param(
+        "te6ccgEBAgEANgABTgAAAABUZWxlZ3JhbSBQcmVtaXVtIGZvciAzIG1vbnRocyAKClJlZgEAFCMzcFdKdGJkYnU",
+        False,
+        id="real_premium_3m",
+    ),
+    pytest.param(
+        "te6ccgEBAwEAhgABqg-KfqWibdDaYaJCPUWWgvAIAQpIh_CzP81LtGn8hgk1icF9Zg43ZX9qzGvVKEJQ-FB1ABdYy5XDKJpaOUSU8JfI5ww3X3YXOxIEEFj6hUPSI8izwgMBAU4AAAAAMTAwMDAwIFRlbGVncmFtIFN0YXJzIAoKUmVmIzBoZ0RmNEYCAAQ5VA",
+        False,
+        id="real_stars_100k",
+    ),
 ]
 
 
 # Decode valid payload tests
 
 
-@pytest.mark.parametrize("payload", PAYLOADS)
-def test_decode_payload(payload: str) -> None:
+@pytest.mark.parametrize(("payload", "strict_ref"), PAYLOAD_CASES)
+def test_decode_payload(payload: str, strict_ref: bool) -> None:
     result = clean_decode(payload)
-    assert "Telegram" in result
-    assert re.search(r"Ref#[A-Za-z0-9]+", result), f"no Ref# in {result!r}"
-    assert all(ord(c) < 128 for c in result), f"non-ASCII chars in {result!r}"
+    if isinstance(result, str):
+        assert "Telegram" in result
+        if strict_ref:
+            assert re.search(r"Ref#[A-Za-z0-9]+", result), f"no Ref# in {result!r}"
+        assert all(ord(c) < 128 for c in result), f"non-ASCII chars in {result!r}"
+    else:
+        assert isinstance(result, Cell)
 
 
 # Edge case tests
@@ -44,3 +69,64 @@ def test_empty_payload_returns_empty_string() -> None:
 def test_invalid_payload_raises_parse_error() -> None:
     with pytest.raises(ParseError):
         clean_decode("!!!not-valid-base64!!!")
+
+
+def test_decode_payload_accepts_base64url_alphabet() -> None:
+    class _FakeSlice:
+        def load_uint(self, _: int) -> int:
+            return 0
+
+        def load_snake_string(self) -> str:
+            return "Telegram Stars Ref#abc"
+
+    class _FakeCell:
+        def begin_parse(self) -> _FakeSlice:
+            return _FakeSlice()
+
+    raw = b"\xfb\xef\xff\x00"
+    payload = base64.urlsafe_b64encode(raw).decode().rstrip("=")
+
+    with patch("pyfragment.utils.decoder.Cell.one_from_boc", return_value=_FakeCell()) as mocked:
+        result = clean_decode(payload)
+
+    mocked.assert_called_once_with(raw)
+    assert result == "Telegram Stars Ref#abc"
+
+
+def test_clean_decode_returns_text_comment_when_utf8() -> None:
+    class _FakeSlice:
+        def load_uint(self, _: int) -> int:
+            return 0
+
+        def load_snake_string(self) -> str:
+            return "Telegram Premium Ref#abc"
+
+    class _FakeCell:
+        def begin_parse(self) -> _FakeSlice:
+            return _FakeSlice()
+
+    payload = base64.urlsafe_b64encode(b"\x00\x01").decode().rstrip("=")
+    with patch("pyfragment.utils.decoder.Cell.one_from_boc", return_value=_FakeCell()):
+        parsed = clean_decode(payload)
+
+    assert parsed == "Telegram Premium Ref#abc"
+
+
+def test_clean_decode_returns_cell_for_binary_payload() -> None:
+    class _FakeSlice:
+        def load_uint(self, _: int) -> int:
+            return 0
+
+        def load_snake_string(self) -> str:
+            raise UnicodeDecodeError("utf-8", b"\xff", 0, 1, "invalid start byte")
+
+    class _FakeCell:
+        def begin_parse(self) -> _FakeSlice:
+            return _FakeSlice()
+
+    payload = base64.urlsafe_b64encode(b"\x00\x01").decode().rstrip("=")
+    fake_cell: object = _FakeCell()
+    with patch("pyfragment.utils.decoder.Cell.one_from_boc", return_value=fake_cell):
+        parsed = clean_decode(payload)
+
+    assert parsed is fake_cell

tests/003_test_balance.py

@@ -1,5 +1,6 @@
 """Unit tests for process_transaction() — balance validation and broadcast retry logic."""
 
+from collections.abc import Generator
 from contextlib import contextmanager
 from unittest.mock import AsyncMock, MagicMock, patch
 
@@ -45,7 +46,7 @@ def _make_wallet(balance_nanotons: int) -> MagicMock:
 
 
 @contextmanager
-def _patch_wallet(wallet: MagicMock):
+def _patch_wallet(wallet: MagicMock) -> Generator[None, None, None]:
     with (
         patch("pyfragment.utils.wallet.TonapiClient") as mock_tonapi,
         patch("pyfragment.utils.wallet.WALLET_CLASSES") as mock_classes,
@@ -61,7 +62,7 @@ def _patch_wallet(wallet: MagicMock):
 
 @pytest.mark.asyncio
 async def test_sufficient_balance_broadcasts() -> None:
-    wallet = _make_wallet(balance_nanotons=1_000_000_000)  # 1 TON, needs 0.556 TON
+    wallet = _make_wallet(balance_nanotons=1_000_000_000)  # 1 TON, above threshold
     with _patch_wallet(wallet), patch("pyfragment.utils.wallet.clean_decode", return_value="50 Telegram Stars"):
         result = await process_transaction(_make_client(), TRANSACTION_DATA)
     assert result == "abc123"
@@ -70,7 +71,7 @@ async def test_sufficient_balance_broadcasts() -> None:
 
 @pytest.mark.asyncio
 async def test_insufficient_balance_raises() -> None:
-    wallet = _make_wallet(balance_nanotons=100_000_000)  # 0.1 TON, needs 0.556 TON
+    wallet = _make_wallet(balance_nanotons=100_000_000)  # 0.1 TON, below threshold
     with _patch_wallet(wallet):
         with pytest.raises(WalletError, match="required"):
             await process_transaction(_make_client(), TRANSACTION_DATA)
@@ -79,7 +80,7 @@ async def test_insufficient_balance_raises() -> None:
 
 @pytest.mark.asyncio
 async def test_exact_minimum_balance_broadcasts() -> None:
-    wallet = _make_wallet(balance_nanotons=556_000_000)  # exactly 0.5 + 0.056 TON
+    wallet = _make_wallet(balance_nanotons=500_000_000)  # exactly transaction amount threshold
     with _patch_wallet(wallet), patch("pyfragment.utils.wallet.clean_decode", return_value="50 Telegram Stars"):
         result = await process_transaction(_make_client(), TRANSACTION_DATA)
     assert result == "abc123"
@@ -87,7 +88,7 @@ async def test_exact_minimum_balance_broadcasts() -> None:
 
 @pytest.mark.asyncio
 async def test_one_nanoton_below_minimum_raises() -> None:
-    wallet = _make_wallet(balance_nanotons=555_999_999)  # 1 nanoton below threshold
+    wallet = _make_wallet(balance_nanotons=499_999_999)  # 1 nanoton below transaction amount threshold
     with _patch_wallet(wallet):
         with pytest.raises(WalletError, match="required"):
             await process_transaction(_make_client(), TRANSACTION_DATA)
@@ -102,6 +103,12 @@ async def test_invalid_payload_raises() -> None:
         await process_transaction(_make_client(), {"transaction": {}})
 
 
+@pytest.mark.asyncio
+async def test_empty_messages_list_raises() -> None:
+    with pytest.raises(TransactionError):
+        await process_transaction(_make_client(), {"transaction": {"messages": []}})
+
+
 @pytest.mark.asyncio
 async def test_balance_check_failed_raises_wallet_error() -> None:
     wallet = _make_wallet(balance_nanotons=1_000_000_000)
@@ -131,3 +138,41 @@ async def test_duplicate_seqno_raises_after_retries() -> None:
         with pytest.raises(TransactionError, match="seqno"):
             await process_transaction(_make_client(), TRANSACTION_DATA)
     assert wallet.transfer.call_count == 3
+
+
+@pytest.mark.asyncio
+async def test_usdt_payment_requires_min_ton_gas_reserve() -> None:
+    wallet = _make_wallet(balance_nanotons=10_000_000)  # 0.01 TON below MIN_TON_BALANCE
+    with _patch_wallet(wallet), patch("pyfragment.utils.wallet._get_usdt_balance", AsyncMock(return_value=100.0)):
+        with pytest.raises(WalletError, match="Insufficient TON balance"):
+            await process_transaction(_make_client(), TRANSACTION_DATA, payment_method="usdt_ton")
+
+
+@pytest.mark.asyncio
+async def test_usdt_payment_checks_usdt_balance() -> None:
+    wallet = _make_wallet(balance_nanotons=1_000_000_000)
+    transaction = {
+        "transaction": {
+            "messages": [
+                {
+                    "address": "0:852443f8599fe6a5da34fe43049ac4e0beb3071bb2bfb56635ea9421287c283a",
+                    "amount": "50000000",
+                    "payload": "",
+                }
+            ]
+        },
+        "required_usdt": 12.5,
+    }
+
+    with (
+        _patch_wallet(wallet),
+        patch("pyfragment.utils.wallet.clean_decode", return_value=""),
+        patch("pyfragment.utils.wallet._get_usdt_balance", AsyncMock(return_value=5.0)),
+    ):
+        with pytest.raises(WalletError, match="Insufficient USDT balance"):
+            await process_transaction(
+                _make_client(),
+                transaction,
+                payment_method="usdt_ton",
+                required_payment_amount=12.5,
+            )

tests/004_test_stars.py

@@ -32,23 +32,27 @@ async def test_purchase_stars_float_amount(client: FragmentClient) -> None:
         await client.purchase_stars("@user", amount=100.5)  # type: ignore[arg-type]
 
 
+@pytest.mark.asyncio
+async def test_purchase_stars_invalid_payment_method(client: FragmentClient) -> None:
+    with pytest.raises(ConfigurationError, match="Invalid payment method"):
+        await client.purchase_stars("@user", amount=500, payment_method="btc")  # type: ignore[arg-type]
+
+
 # Stars purchase mocked tests
 
 
 @pytest.mark.asyncio
 async def test_purchase_stars_success(client: FragmentClient) -> None:
+    call_mock = AsyncMock(
+        side_effect=[
+            {"found": {"recipient": FAKE_RECIPIENT}},
+            {},  # updateStarsBuyState
+            {"req_id": FAKE_REQ_ID},
+            FAKE_TRANSACTION,
+        ]
+    )
     with (
-        patch.object(
-            client,
-            "call",
-            AsyncMock(
-                side_effect=[
-                    {"found": {"recipient": FAKE_RECIPIENT}},
-                    {"req_id": FAKE_REQ_ID},
-                    FAKE_TRANSACTION,
-                ]
-            ),
-        ),
+        patch.object(client, "call", call_mock),
         patch.object(_purchase_stars_mod, "get_account_info", AsyncMock(return_value=FAKE_ACCOUNT)),
         patch.object(_purchase_stars_mod, "process_transaction", AsyncMock(return_value=FAKE_TX_HASH)),
     ):
@@ -60,6 +64,44 @@ async def test_purchase_stars_success(client: FragmentClient) -> None:
     assert result.amount == 500
 
 
+@pytest.mark.asyncio
+async def test_purchase_stars_passes_payment_method(client: FragmentClient) -> None:
+    call_mock = AsyncMock(
+        side_effect=[
+            {"found": {"recipient": FAKE_RECIPIENT}},
+            {},  # updateStarsBuyState
+            {"req_id": FAKE_REQ_ID},
+            FAKE_TRANSACTION,
+        ]
+    )
+    proc_mock = AsyncMock(return_value=FAKE_TX_HASH)
+    with (
+        patch.object(client, "call", call_mock),
+        patch.object(_purchase_stars_mod, "get_account_info", AsyncMock(return_value=FAKE_ACCOUNT)),
+        patch.object(_purchase_stars_mod, "process_transaction", proc_mock),
+    ):
+        await client.purchase_stars("@user", amount=500, payment_method="usdt_ton")
+
+    init_call = call_mock.await_args_list[2]
+    assert init_call.args[0] == "initBuyStarsRequest"
+    assert init_call.args[1]["payment_method"] == "usdt_ton"
+    assert proc_mock.await_args is not None
+    assert proc_mock.await_args.kwargs["payment_method"] == "usdt_ton"
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("query", ["@user", "monk", "https://t.me/monk"])
+async def test_purchase_stars_accepts_query_formats(client: FragmentClient, query: str) -> None:
+    call_mock = AsyncMock(return_value={"found": {}})
+    with patch.object(client, "call", call_mock):
+        with pytest.raises(UserNotFoundError):
+            await client.purchase_stars(query, amount=500)
+
+    search_call = call_mock.await_args_list[0]
+    assert search_call.args[0] == "searchStarsRecipient"
+    assert search_call.args[1]["query"] == query
+
+
 @pytest.mark.asyncio
 async def test_purchase_stars_user_not_found(client: FragmentClient) -> None:
     with patch.object(client, "call", AsyncMock(return_value={"found": {}})):
@@ -106,6 +148,12 @@ async def test_giveaway_stars_float_amount(client: FragmentClient) -> None:
         await client.giveaway_stars("@channel", winners=1, amount=500.5)  # type: ignore[arg-type]
 
 
+@pytest.mark.asyncio
+async def test_giveaway_stars_invalid_payment_method(client: FragmentClient) -> None:
+    with pytest.raises(ConfigurationError, match="Invalid payment method"):
+        await client.giveaway_stars("@channel", winners=1, amount=500, payment_method="btc")  # type: ignore[arg-type]
+
+
 # Stars giveaway mocked tests
 
 
@@ -135,6 +183,43 @@ async def test_giveaway_stars_success(client: FragmentClient) -> None:
     assert result.amount == 1000
 
 
+@pytest.mark.asyncio
+async def test_giveaway_stars_passes_payment_method(client: FragmentClient) -> None:
+    call_mock = AsyncMock(
+        side_effect=[
+            {"found": {"recipient": FAKE_RECIPIENT}},
+            {"req_id": FAKE_REQ_ID},
+            FAKE_TRANSACTION,
+        ]
+    )
+    proc_mock = AsyncMock(return_value=FAKE_TX_HASH)
+    with (
+        patch.object(client, "call", call_mock),
+        patch.object(_giveaway_stars_mod, "get_account_info", AsyncMock(return_value=FAKE_ACCOUNT)),
+        patch.object(_giveaway_stars_mod, "process_transaction", proc_mock),
+    ):
+        await client.giveaway_stars("@channel", winners=3, amount=1000, payment_method="usdt_ton")
+
+    init_call = call_mock.await_args_list[1]
+    assert init_call.args[0] == "initGiveawayStarsRequest"
+    assert init_call.args[1]["payment_method"] == "usdt_ton"
+    assert proc_mock.await_args is not None
+    assert proc_mock.await_args.kwargs["payment_method"] == "usdt_ton"
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("query", ["@channel", "monk", "https://t.me/id2757542991"])
+async def test_giveaway_stars_accepts_query_formats(client: FragmentClient, query: str) -> None:
+    call_mock = AsyncMock(return_value={"found": {}})
+    with patch.object(client, "call", call_mock):
+        with pytest.raises(UserNotFoundError):
+            await client.giveaway_stars(query, winners=1, amount=500)
+
+    search_call = call_mock.await_args_list[0]
+    assert search_call.args[0] == "searchStarsGiveawayRecipient"
+    assert search_call.args[1]["query"] == query
+
+
 @pytest.mark.asyncio
 async def test_giveaway_stars_channel_not_found(client: FragmentClient) -> None:
     with patch.object(client, "call", AsyncMock(return_value={"found": {}})):

tests/005_test_premium.py

@@ -26,6 +26,12 @@ async def test_purchase_premium_months_zero(client: FragmentClient) -> None:
         await client.purchase_premium("@user", months=0)
 
 
+@pytest.mark.asyncio
+async def test_purchase_premium_invalid_payment_method(client: FragmentClient) -> None:
+    with pytest.raises(ConfigurationError, match="Invalid payment method"):
+        await client.purchase_premium("@user", months=3, payment_method="btc")  # type: ignore[arg-type]
+
+
 # Premium purchase mocked tests
 
 
@@ -55,6 +61,44 @@ async def test_purchase_premium_success(client: FragmentClient) -> None:
     assert result.amount == 3
 
 
+@pytest.mark.asyncio
+async def test_purchase_premium_passes_payment_method(client: FragmentClient) -> None:
+    call_mock = AsyncMock(
+        side_effect=[
+            {"found": {"recipient": FAKE_RECIPIENT}},
+            {},  # updatePremiumState
+            {"req_id": FAKE_REQ_ID},
+            FAKE_TRANSACTION,
+        ]
+    )
+    proc_mock = AsyncMock(return_value=FAKE_TX_HASH)
+    with (
+        patch.object(client, "call", call_mock),
+        patch.object(_purchase_premium_mod, "get_account_info", AsyncMock(return_value=FAKE_ACCOUNT)),
+        patch.object(_purchase_premium_mod, "process_transaction", proc_mock),
+    ):
+        await client.purchase_premium("@user", months=6, payment_method="usdt_ton")
+
+    init_call = call_mock.await_args_list[2]
+    assert init_call.args[0] == "initGiftPremiumRequest"
+    assert init_call.args[1]["payment_method"] == "usdt_ton"
+    assert proc_mock.await_args is not None
+    assert proc_mock.await_args.kwargs["payment_method"] == "usdt_ton"
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("query", ["@user", "monk", "https://t.me/monk"])
+async def test_purchase_premium_accepts_query_formats(client: FragmentClient, query: str) -> None:
+    call_mock = AsyncMock(return_value={"found": {}})
+    with patch.object(client, "call", call_mock):
+        with pytest.raises(UserNotFoundError):
+            await client.purchase_premium(query, months=6)
+
+    search_call = call_mock.await_args_list[0]
+    assert search_call.args[0] == "searchPremiumGiftRecipient"
+    assert search_call.args[1]["query"] == query
+
+
 @pytest.mark.asyncio
 async def test_purchase_premium_user_not_found(client: FragmentClient) -> None:
     with patch.object(client, "call", AsyncMock(return_value={"found": {}})):
@@ -89,6 +133,12 @@ async def test_giveaway_premium_invalid_months(client: FragmentClient) -> None:
         await client.giveaway_premium("@channel", winners=10, months=5)
 
 
+@pytest.mark.asyncio
+async def test_giveaway_premium_invalid_payment_method(client: FragmentClient) -> None:
+    with pytest.raises(ConfigurationError, match="Invalid payment method"):
+        await client.giveaway_premium("@channel", winners=10, months=3, payment_method="btc")  # type: ignore[arg-type]
+
+
 # Premium giveaway mocked tests
 
 
@@ -118,6 +168,43 @@ async def test_giveaway_premium_success(client: FragmentClient) -> None:
     assert result.amount == 3
 
 
+@pytest.mark.asyncio
+async def test_giveaway_premium_passes_payment_method(client: FragmentClient) -> None:
+    call_mock = AsyncMock(
+        side_effect=[
+            {"found": {"recipient": FAKE_RECIPIENT}},
+            {"req_id": FAKE_REQ_ID},
+            FAKE_TRANSACTION,
+        ]
+    )
+    proc_mock = AsyncMock(return_value=FAKE_TX_HASH)
+    with (
+        patch.object(client, "call", call_mock),
+        patch.object(_giveaway_premium_mod, "get_account_info", AsyncMock(return_value=FAKE_ACCOUNT)),
+        patch.object(_giveaway_premium_mod, "process_transaction", proc_mock),
+    ):
+        await client.giveaway_premium("@channel", winners=10, months=6, payment_method="usdt_ton")
+
+    init_call = call_mock.await_args_list[1]
+    assert init_call.args[0] == "initGiveawayPremiumRequest"
+    assert init_call.args[1]["payment_method"] == "usdt_ton"
+    assert proc_mock.await_args is not None
+    assert proc_mock.await_args.kwargs["payment_method"] == "usdt_ton"
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("query", ["@channel", "monk", "https://t.me/id2757542991"])
+async def test_giveaway_premium_accepts_query_formats(client: FragmentClient, query: str) -> None:
+    call_mock = AsyncMock(return_value={"found": {}})
+    with patch.object(client, "call", call_mock):
+        with pytest.raises(UserNotFoundError):
+            await client.giveaway_premium(query, winners=10, months=3)
+
+    search_call = call_mock.await_args_list[0]
+    assert search_call.args[0] == "searchPremiumGiveawayRecipient"
+    assert search_call.args[1]["query"] == query
+
+
 @pytest.mark.asyncio
 async def test_giveaway_premium_channel_not_found(client: FragmentClient) -> None:
     with patch.object(client, "call", AsyncMock(return_value={"found": {}})):

tests/007_test_wallet.py

@@ -1,4 +1,4 @@
-"""Unit tests for get_wallet() — wallet address and TON balance lookup."""
+"""Unit tests for get_wallet() — wallet address/state with separate TON and USDT balances."""
 
 from unittest.mock import AsyncMock, MagicMock, patch
 
@@ -7,7 +7,7 @@ import pytest
 from pyfragment import FragmentClient, WalletInfo
 from tests.shared import FAKE_ADDRESS, FAKE_BALANCE_NANOTON
 
-# Wallet mocked tests
+# Wallet mocked tests (TON and USDT balances are returned separately)
 
 
 @pytest.mark.asyncio
@@ -21,6 +21,7 @@ async def test_get_wallet_returns_wallet_info(client: FragmentClient) -> None:
     with (
         patch("pyfragment.utils.wallet.TonapiClient") as mock_tonapi,
         patch("pyfragment.utils.wallet.WALLET_CLASSES") as mock_classes,
+        patch("pyfragment.utils.wallet._get_usdt_balance", AsyncMock(return_value=12.3456)),
     ):
         mock_tonapi.return_value.__aenter__ = AsyncMock(return_value=MagicMock())
         mock_tonapi.return_value.__aexit__ = AsyncMock(return_value=False)
@@ -31,7 +32,8 @@ async def test_get_wallet_returns_wallet_info(client: FragmentClient) -> None:
     assert isinstance(result, WalletInfo)
     assert result.address == FAKE_ADDRESS
     assert result.state == "active"
-    assert result.balance == round(FAKE_BALANCE_NANOTON / 1_000_000_000, 4)
+    assert result.ton_balance == round(FAKE_BALANCE_NANOTON / 1_000_000_000, 4)
+    assert result.usdt_balance == 12.3456
 
 
 @pytest.mark.asyncio
@@ -45,6 +47,7 @@ async def test_get_wallet_balance_is_zero(client: FragmentClient) -> None:
     with (
         patch("pyfragment.utils.wallet.TonapiClient") as mock_tonapi,
         patch("pyfragment.utils.wallet.WALLET_CLASSES") as mock_classes,
+        patch("pyfragment.utils.wallet._get_usdt_balance", AsyncMock(return_value=0.0)),
     ):
         mock_tonapi.return_value.__aenter__ = AsyncMock(return_value=MagicMock())
         mock_tonapi.return_value.__aexit__ = AsyncMock(return_value=False)
@@ -52,5 +55,6 @@ async def test_get_wallet_balance_is_zero(client: FragmentClient) -> None:
 
         result = await client.get_wallet()
 
-    assert result.balance == 0.0
+    assert result.ton_balance == 0.0
+    assert result.usdt_balance == 0.0
     assert result.state == "uninit"

tests/008_test_call.py

@@ -1,10 +1,13 @@
 """Unit tests for FragmentClient.call() — raw Fragment API access."""
 
-from unittest.mock import AsyncMock, patch
+from unittest.mock import AsyncMock, MagicMock, patch
 
+import httpx
 import pytest
 
 from pyfragment import FragmentClient
+from pyfragment.types import FragmentPageError
+from pyfragment.utils.http import fragment_request
 from tests.shared import FAKE_HASH, FAKE_RESPONSE
 
 # client.call() mocked tests
@@ -61,3 +64,19 @@ async def test_call_merges_extra_data(client: FragmentClient) -> None:
 
     _, _, _, sent_data = mock_request.call_args.args
     assert sent_data == {"method": "anyMethod", "key": "value", "num": 7}
+
+
+# fragment_request HTTP status tests
+
+
+@pytest.mark.asyncio
+async def test_fragment_request_non_200_raises() -> None:
+    """fragment_request raises FragmentPageError on non-200 HTTP responses."""
+    response = MagicMock(spec=httpx.Response)
+    response.status_code = 429
+
+    session = AsyncMock(spec=httpx.AsyncClient)
+    session.post = AsyncMock(return_value=response)
+
+    with pytest.raises(FragmentPageError, match="429"):
+        await fragment_request(session, FAKE_HASH, {}, {"method": "anyMethod"})

tests/014_test_cookies.py

@@ -17,7 +17,7 @@ FAKE_JAR = [
 ]
 
 
-def _mock_rookiepy(jar: list[dict] | None = None) -> MagicMock:
+def _mock_rookiepy(jar: list[dict[str, str]] | None = None) -> MagicMock:
     mock = MagicMock()
     mock.chrome.return_value = jar if jar is not None else FAKE_JAR
     return mock
@@ -106,6 +106,21 @@ def test_empty_cookie_value_treated_as_missing() -> None:
             get_cookies_from_browser("chrome")
 
 
+# expired cookie tests
+
+
+def test_expired_cookie_raises() -> None:
+    expired_jar = [
+        {"name": "stel_ssid", "value": "abc123", "expires": "2020-01-01T00:00:00.000Z"},
+        {"name": "stel_dt", "value": "-120"},
+        {"name": "stel_token", "value": "tok_xyz"},
+        {"name": "stel_ton_token", "value": "ton_xyz"},
+    ]
+    with patch(PATCH, _mock_rookiepy(expired_jar)):
+        with pytest.raises(CookieError, match="expired"):
+            get_cookies_from_browser("chrome")
+
+
 # read failure tests
 
 

tests/015_test_payment_amount.py

@@ -0,0 +1,21 @@
+"""Unit tests for init payment amount parsing."""
+
+from pyfragment.utils.html import parse_required_payment_amount
+
+
+def test_parse_required_payment_amount_ton_uses_amount() -> None:
+    init_response = {"amount": "0.326"}
+    assert parse_required_payment_amount(init_response) == 0.326
+
+
+def test_parse_required_payment_amount_usdt_uses_amount() -> None:
+    init_response = {
+        "amount": "0.00075",
+        "content": '<span class="icon-before icon-usd">0.75</span>',
+    }
+    assert parse_required_payment_amount(init_response) == 0.00075
+
+
+def test_parse_required_payment_amount_usdt_falls_back_to_amount() -> None:
+    init_response = {"amount": "1.25", "content": "<p>no usd icon</p>"}
+    assert parse_required_payment_amount(init_response) == 1.25

tests/conftest.py

@@ -1,5 +1,6 @@
 import json
 import os
+from typing import cast
 
 import pytest
 
@@ -14,13 +15,13 @@ from tests.shared import VALID_API_KEY, VALID_COOKIES, VALID_SEED
 
 
 @pytest.fixture
-def cookies():
+def cookies() -> dict[str, str]:
     """Load Fragment cookies from COOKIES_JSON env var; skip if unavailable."""
     raw = os.environ.get("COOKIES_JSON")
     if not raw:
         pytest.skip("COOKIES_JSON env var not set")
     try:
-        return json.loads(raw)
+        return cast(dict[str, str], json.loads(raw))
     except Exception as exc:
         pytest.skip(f"Cookies unavailable — {exc}")