diff --git a/.github/ISSUE_TEMPLATE/bug.yaml b/.github/ISSUE_TEMPLATE/bug.yaml
new file mode 100644
index 0000000..230a733
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug.yaml
@@ -0,0 +1,101 @@
+name: Bug report
+description: Report an issue or unexpected behavior in FragmentAPI.
+labels:
+  - bug
+body:
+  - type: checkboxes
+    attributes:
+      label: Checklist
+      options:
+        - label: I am sure the error is coming from FragmentAPI 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:
+      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: input
+    attributes:
+      label: FragmentAPI version
+      description: Run `pip show fragmentapi` inside your virtualenv
+      placeholder: e.g. 2026.1.0
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Expected behavior
+      description: Describe what you expected to happen.
+      placeholder: e.g. Stars should be gifted and StarsResult returned.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Current behavior
+      description: Describe what is actually happening.
+      placeholder: e.g. RequestError is raised with status 400.
+    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 gift_stars("@username", amount=100)
+        3. See error
+    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 fragmentapi import FragmentClient
+
+        async def main():
+            client = FragmentClient(...)
+            result = await client.gift_stars("@username", amount=100)
+
+        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
+            ...
+        fragmentapi.types.RequestError: ...
+      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.
diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml
new file mode 100644
index 0000000..7fc7197
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/config.yml
@@ -0,0 +1,5 @@
+blank_issues_enabled: true
+contact_links:
+  - name: Ask a question or start a discussion
+    url: https://github.com/bohd4nx/FragmentAPI/discussions
+    about: General questions, ideas, and community help go here — not in the issue tracker.
diff --git a/.github/ISSUE_TEMPLATE/feature.yaml b/.github/ISSUE_TEMPLATE/feature.yaml
new file mode 100644
index 0000000..ae3d319
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature.yaml
@@ -0,0 +1,51 @@
+name: Feature request
+description: Suggest an improvement or new feature for FragmentAPI.
+labels:
+  - enhancement
+body:
+  - type: dropdown
+    attributes:
+      label: FragmentAPI 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: 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: 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.
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 0000000..631b583
--- /dev/null
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,34 @@
+# Description
+
+Please include a summary of the change and which issue is fixed.
+Include relevant motivation and context.
+
+Fixes # (issue)
+
+## Type of change
+
+- [ ] Documentation (typos, examples, or any docs update)
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to change)
+- [ ] This change requires a documentation update
+
+## How has this been tested?
+
+Describe the tests you ran to verify the change and list any relevant details.
+
+- [ ] Existing tests pass (`pytest`)
+- [ ] New tests added for this change
+
+**Test configuration:**
+* OS:
+* Python version:
+* FragmentAPI version:
+
+## Checklist
+
+- [ ] My code follows the style guidelines of this project
+- [ ] I have performed a self-review of my own code
+- [ ] I have updated documentation where necessary
+- [ ] I have added tests that prove my fix or feature works
+- [ ] All new and existing tests pass locally
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
new file mode 100644
index 0000000..ed1ead3
--- /dev/null
+++ b/.github/workflows/lint.yml
@@ -0,0 +1,31 @@
+name: Lint
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  lint:
+    name: Lint & format
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v6.0.2
+
+      - uses: actions/setup-python@v6.2.0
+        with:
+          python-version: "3.12"
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v7.5.0
+
+      - name: Install dev dependencies
+        run: uv pip install --system ".[dev]"
+
+      - name: Run ruff
+        run: ruff check .
+
+      - name: Run black
+        run: black --check . --target-version py312
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000..bc243b9
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,49 @@
+name: Publish to PyPI
+
+on:
+  push:
+    branches: [master]
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v6.0.2
+
+      - uses: actions/setup-python@v6.2.0
+        with:
+          python-version: "3.12"
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v7.5.0
+
+      - name: Build distribution
+        run: uv build
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v7
+        with:
+          name: dist
+          path: dist/*
+
+  publish:
+    name: Publish
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/project/fragmentapi/
+    permissions:
+      id-token: write
+
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v8.0.1
+        with:
+          name: dist
+          path: dist
+
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@v1.13.0
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d698a55..4edd34f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,18 +8,21 @@ on:
 
 jobs:
   test:
+    name: Run tests
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.2
 
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v6.2.0
         with:
           python-version: "3.12"
-          cache: "pip"
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v7.5.0
 
       - name: Install dependencies
-        run: pip install -r requirements.txt pytest pytest-asyncio
+        run: uv pip install --system ".[dev]"
 
       - name: Write cookies.json
         if: ${{ env.COOKIES_JSON != '' }}
diff --git a/.gitignore b/.gitignore
index 9cb8f25..082dca9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,3 +24,16 @@ logs/
 .DS_Store
 Thumbs.db
 cookies.json
+
+# Testing & tooling artifacts
+.hypothesis/
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+.coverage
+htmlcov/
+
+# Build & distribution
+dist/
+build/
+*.egg-info/
diff --git a/.hypothesis/unicode_data/15.0.0/charmap.json.gz b/.hypothesis/unicode_data/15.0.0/charmap.json.gz
deleted file mode 100644
index c740c02..0000000
Binary files a/.hypothesis/unicode_data/15.0.0/charmap.json.gz and /dev/null differ
diff --git a/fragmentapi/methods/premium.py b/fragmentapi/methods/premium.py
index b409d63..4f5cce6 100644
--- a/fragmentapi/methods/premium.py
+++ b/fragmentapi/methods/premium.py
@@ -17,9 +17,9 @@ from fragmentapi.types import (
 )
 from fragmentapi.utils import (
     execute_transaction_request,
+    fragment_post,
     get_account_info,
     get_fragment_hash,
-    parse_json_response,
     process_transaction,
 )
 
@@ -40,16 +40,16 @@ async def _search_recipient(
     username: str,
     months: int,
 ) -> str:
-    resp = await session.post(
-        f"https://fragment.com/api?hash={fragment_hash}",
-        headers=HEADERS,
-        data={
+    result = await fragment_post(
+        session,
+        fragment_hash,
+        HEADERS,
+        {
             "query": username,
             "months": months,
             "method": "searchPremiumGiftRecipient",
         },
     )
-    result = parse_json_response(resp, "searchPremiumGiftRecipient")
     recipient = result.get("found", {}).get("recipient")
     if not recipient:
         raise UserNotFoundError(UserNotFoundError.NOT_FOUND.format(username=username))
@@ -62,26 +62,27 @@ async def _init_request(
     recipient: str,
     months: int,
 ) -> str:
-    await session.post(
-        f"https://fragment.com/api?hash={fragment_hash}",
-        headers=HEADERS,
-        data={
+    await fragment_post(
+        session,
+        fragment_hash,
+        HEADERS,
+        {
             "mode": "new",
             "lv": "false",
             "dh": str(int(time.time())),
             "method": "updatePremiumState",
         },
     )
-    resp = await session.post(
-        f"https://fragment.com/api?hash={fragment_hash}",
-        headers=HEADERS,
-        data={
+    result = await fragment_post(
+        session,
+        fragment_hash,
+        HEADERS,
+        {
             "recipient": recipient,
             "months": months,
             "method": "initGiftPremiumRequest",
         },
     )
-    result = parse_json_response(resp, "initGiftPremiumRequest")
     req_id = result.get("req_id")
     if not req_id:
         raise FragmentAPIError(FragmentAPIError.NO_REQUEST_ID.format(context="Premium purchase"))
diff --git a/fragmentapi/methods/stars.py b/fragmentapi/methods/stars.py
index 36bd271..9f15853 100644
--- a/fragmentapi/methods/stars.py
+++ b/fragmentapi/methods/stars.py
@@ -16,9 +16,9 @@ from fragmentapi.types import (
 )
 from fragmentapi.utils import (
     execute_transaction_request,
+    fragment_post,
     get_account_info,
     get_fragment_hash,
-    parse_json_response,
     process_transaction,
 )
 
@@ -38,12 +38,16 @@ async def _search_recipient(
     fragment_hash: str,
     username: str,
 ) -> str:
-    resp = await session.post(
-        f"https://fragment.com/api?hash={fragment_hash}",
-        headers=HEADERS,
-        data={"query": username, "quantity": "", "method": "searchStarsRecipient"},
+    result = await fragment_post(
+        session,
+        fragment_hash,
+        HEADERS,
+        {
+            "query": username,
+            "quantity": "",
+            "method": "searchStarsRecipient",
+        },
     )
-    result = parse_json_response(resp, "searchStarsRecipient")
     recipient = result.get("found", {}).get("recipient")
     if not recipient:
         raise UserNotFoundError(UserNotFoundError.NOT_FOUND.format(username=username))
@@ -56,16 +60,16 @@ async def _init_request(
     recipient: str,
     amount: int,
 ) -> str:
-    resp = await session.post(
-        f"https://fragment.com/api?hash={fragment_hash}",
-        headers=HEADERS,
-        data={
+    result = await fragment_post(
+        session,
+        fragment_hash,
+        HEADERS,
+        {
             "recipient": recipient,
             "quantity": amount,
             "method": "initBuyStarsRequest",
         },
     )
-    result = parse_json_response(resp, "initBuyStarsRequest")
     req_id = result.get("req_id")
     if not req_id:
         raise FragmentAPIError(FragmentAPIError.NO_REQUEST_ID.format(context="Stars purchase"))
diff --git a/fragmentapi/methods/ton.py b/fragmentapi/methods/ton.py
index 325d8e0..e4556cc 100644
--- a/fragmentapi/methods/ton.py
+++ b/fragmentapi/methods/ton.py
@@ -16,9 +16,9 @@ from fragmentapi.types import (
 )
 from fragmentapi.utils import (
     execute_transaction_request,
+    fragment_post,
     get_account_info,
     get_fragment_hash,
-    parse_json_response,
     process_transaction,
 )
 
@@ -38,17 +38,16 @@ async def _search_recipient(
     fragment_hash: str,
     username: str,
 ) -> str:
-    await session.post(
-        f"https://fragment.com/api?hash={fragment_hash}",
-        headers=HEADERS,
-        data={"mode": "new", "method": "updateAdsTopupState"},
+    await fragment_post(session, fragment_hash, HEADERS, {"mode": "new", "method": "updateAdsTopupState"})
+    result = await fragment_post(
+        session,
+        fragment_hash,
+        HEADERS,
+        {
+            "query": username,
+            "method": "searchAdsTopupRecipient",
+        },
     )
-    resp = await session.post(
-        f"https://fragment.com/api?hash={fragment_hash}",
-        headers=HEADERS,
-        data={"query": username, "method": "searchAdsTopupRecipient"},
-    )
-    result = parse_json_response(resp, "searchAdsTopupRecipient")
     recipient = result.get("found", {}).get("recipient")
     if not recipient:
         raise UserNotFoundError(UserNotFoundError.NOT_FOUND.format(username=username))
@@ -61,16 +60,16 @@ async def _init_request(
     recipient: str,
     amount: int,
 ) -> str:
-    resp = await session.post(
-        f"https://fragment.com/api?hash={fragment_hash}",
-        headers=HEADERS,
-        data={
+    result = await fragment_post(
+        session,
+        fragment_hash,
+        HEADERS,
+        {
             "recipient": recipient,
             "amount": amount,
             "method": "initAdsTopupRequest",
         },
     )
-    result = parse_json_response(resp, "initAdsTopupRequest")
     req_id = result.get("req_id")
     if not req_id:
         raise FragmentAPIError(FragmentAPIError.NO_REQUEST_ID.format(context="TON topup"))
diff --git a/fragmentapi/types/__init__.py b/fragmentapi/types/__init__.py
index addcddd..13b69d4 100644
--- a/fragmentapi/types/__init__.py
+++ b/fragmentapi/types/__init__.py
@@ -1,6 +1,7 @@
 from fragmentapi.types.constants import (
     BASE_HEADERS,
     DEVICE,
+    MIN_TON_BALANCE,
     PREMIUM_PAGE,
     REQUIRED_COOKIE_KEYS,
     STARS_PAGE,
@@ -30,6 +31,7 @@ __all__ = [
     # constants
     "BASE_HEADERS",
     "DEVICE",
+    "MIN_TON_BALANCE",
     "PREMIUM_PAGE",
     "REQUIRED_COOKIE_KEYS",
     "STARS_PAGE",
diff --git a/fragmentapi/types/constants.py b/fragmentapi/types/constants.py
index 073d1e7..2bb799d 100644
--- a/fragmentapi/types/constants.py
+++ b/fragmentapi/types/constants.py
@@ -10,6 +10,9 @@ 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, type] = {"V4R2": WalletV4R2, "V5R1": WalletV5R1}
 
+# Minimum wallet balance required to cover TON network gas fees.
+MIN_TON_BALANCE: float = 0.056
+
 # Required Fragment session cookie keys
 REQUIRED_COOKIE_KEYS: tuple[str, ...] = ("stel_ssid", "stel_dt", "stel_token", "stel_ton_token")
 
diff --git a/fragmentapi/utils/__init__.py b/fragmentapi/utils/__init__.py
index c570db8..a888ac8 100644
--- a/fragmentapi/utils/__init__.py
+++ b/fragmentapi/utils/__init__.py
@@ -1,14 +1,16 @@
-from fragmentapi.utils.client import (
+from fragmentapi.utils.decoder import clean_decode
+from fragmentapi.utils.http import (
     execute_transaction_request,
+    fragment_post,
     get_fragment_hash,
     parse_json_response,
 )
-from fragmentapi.utils.decoder import clean_decode
 from fragmentapi.utils.wallet import get_account_info, process_transaction
 
 __all__ = [
     "clean_decode",
     "execute_transaction_request",
+    "fragment_post",
     "get_account_info",
     "get_fragment_hash",
     "parse_json_response",
diff --git a/fragmentapi/utils/decoder.py b/fragmentapi/utils/decoder.py
index 43a9e75..77e076a 100644
--- a/fragmentapi/utils/decoder.py
+++ b/fragmentapi/utils/decoder.py
@@ -6,6 +6,21 @@ from fragmentapi.types import RequestError
 
 
 def clean_decode(payload: str) -> str:
+    """Decode a base64-encoded BOC payload to a plain-text comment string.
+
+    Fragment transaction payloads are BOC-serialised TVM cells. This function
+    base64-decodes the payload, parses the cell, skips the 32-bit op-code
+    prefix, and reads the snake-encoded UTF-8 comment.
+
+    Args:
+        payload: Base64url-encoded BOC string (padding is added automatically).
+
+    Returns:
+        Decoded comment string, or ``""`` for an empty payload.
+
+    Raises:
+        RequestError: If the payload cannot be decoded or parsed.
+    """
     s = payload.strip()
     if not s:
         return ""
diff --git a/fragmentapi/utils/client.py b/fragmentapi/utils/http.py
similarity index 76%
rename from fragmentapi/utils/client.py
rename to fragmentapi/utils/http.py
index 53be7bc..0874645 100644
--- a/fragmentapi/utils/client.py
+++ b/fragmentapi/utils/http.py
@@ -76,6 +76,35 @@ def parse_json_response(response: httpx.Response, context: str) -> dict[str, Any
         raise RequestError(RequestError.UNPARSEABLE.format(context=context, exc=exc)) from exc
 
 
+async def fragment_post(
+    session: httpx.AsyncClient,
+    fragment_hash: str,
+    headers: dict[str, str],
+    data: dict[str, Any],
+) -> dict[str, Any]:
+    """POST a single request to the Fragment API.
+
+    Builds the ``/api?hash=`` URL, sends the request, and returns the
+    parsed JSON body. Use this for every API method call — search,
+    init, state updates, etc.
+
+    Args:
+        session: Active httpx session with Fragment cookies.
+        fragment_hash: Short-lived hash from the Fragment page HTML.
+        headers: Page-specific HTTP headers.
+        data: Form data payload; must include a ``"method"`` key.
+
+    Returns:
+        Parsed API response as a dict.
+    """
+    resp = await session.post(
+        f"https://fragment.com/api?hash={fragment_hash}",
+        headers=headers,
+        data=data,
+    )
+    return parse_json_response(resp, data.get("method", "request"))
+
+
 async def execute_transaction_request(
     session: httpx.AsyncClient,
     headers: dict,
@@ -97,9 +126,7 @@ async def execute_transaction_request(
         VerificationError: If Fragment requires KYC verification.
         RequestError: If the response cannot be parsed.
     """
-    url = f"https://fragment.com/api?hash={fragment_hash}"
-    resp = await session.post(url, headers=headers, data=tx_data)
-    transaction = parse_json_response(resp, tx_data.get("method", "transaction"))
+    transaction = await fragment_post(session, fragment_hash, headers, tx_data)
 
     if transaction.get("need_verify"):
         raise VerificationError(VerificationError.KYC_REQUIRED)
diff --git a/fragmentapi/utils/wallet.py b/fragmentapi/utils/wallet.py
index e852bdc..01a0939 100644
--- a/fragmentapi/utils/wallet.py
+++ b/fragmentapi/utils/wallet.py
@@ -4,7 +4,7 @@ from typing import TYPE_CHECKING, Any
 from tonutils.clients import TonapiClient
 from tonutils.types import NetworkGlobalID
 
-from fragmentapi.types import WALLET_CLASSES, TransactionError, WalletError
+from fragmentapi.types import MIN_TON_BALANCE, WALLET_CLASSES, TransactionError, WalletError
 from fragmentapi.utils.decoder import clean_decode
 
 if TYPE_CHECKING:
@@ -16,6 +16,22 @@ def _init_ton_client(client: "FragmentClient") -> TonapiClient:
 
 
 async def process_transaction(client: "FragmentClient", transaction_data: dict) -> str:
+    """Sign and broadcast a Fragment transaction to the TON network.
+
+    Validates the payload structure, checks the wallet balance, decodes the
+    on-chain comment, and calls ``wallet.transfer``.
+
+    Args:
+        client: Authenticated :class:`FragmentClient` instance.
+        transaction_data: Raw transaction dict from ``execute_transaction_request``.
+
+    Returns:
+        Normalised transaction hash string.
+
+    Raises:
+        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"]:
         raise TransactionError(TransactionError.INVALID_PAYLOAD)
 
@@ -30,7 +46,7 @@ async def process_transaction(client: "FragmentClient", transaction_data: dict)
         try:
             await wallet.refresh()
             balance_ton = wallet.balance / 1_000_000_000
-            if balance_ton < 0.056:
+            if balance_ton < MIN_TON_BALANCE:
                 raise WalletError(WalletError.LOW_BALANCE.format(balance=balance_ton))
         except WalletError:
             raise
@@ -54,6 +70,21 @@ async def process_transaction(client: "FragmentClient", transaction_data: dict)
 
 
 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
+    returned dict is JSON-serialised and passed as the ``account`` field in
+    ``getBuy*Link`` / ``get*Link`` requests.
+
+    Args:
+        client: Authenticated :class:`FragmentClient` instance.
+
+    Returns:
+        Dict with ``address``, ``publicKey``, ``chain``, ``walletStateInit``.
+
+    Raises:
+        WalletError: If account info cannot be retrieved.
+    """
     async with _init_ton_client(client) as ton:
         try:
             wallet_cls = WALLET_CLASSES[client.wallet_version]
diff --git a/pyproject.toml b/pyproject.toml
index 3a407fb..d62ec9c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,6 +30,14 @@ dependencies = [
     "tonutils[pytoniq]==2.0.0",
 ]
 
+[project.optional-dependencies]
+dev = [
+    "pytest>=9.0",
+    "pytest-asyncio>=1.0",
+    "ruff",
+    "black",
+]
+
 [project.urls]
 Homepage = "https://github.com/bohd4nx/FragmentAPI"
 Repository = "https://github.com/bohd4nx/FragmentAPI"
@@ -49,11 +57,13 @@ line-length = 128
 target-version = ["py312"]
 
 [tool.ruff]
-target-version = "py312"
 line-length = 128
+target-version = "py312"
 
 [tool.ruff.lint]
 # E — pycodestyle errors, F — pyflakes, W — warnings, I — isort
 select = ["E", "F", "W", "I"]
-# E501 — line too long (covered by line-length above)
 ignore = ["E501"]
+
+[tool.ruff.lint.per-file-ignores]
+"tests/*" = ["E402"]
diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 0000000..aefbcb6
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1 @@
+-e .[dev]
diff --git a/requirements.txt b/requirements.txt
index 5d930d9..d6e1198 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1 @@
-httpx==0.28.1
-tonutils[pytoniq]==2.0.0
+-e .