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hngkr

MCP Releases Server

by hngkr

MCP Releases Server

An MCP (Model Context Protocol) server that provides GitHub release information and PyPI package versions.

Features

  • GitHub Releases: Query the latest stable release from any GitHub repository

  • PyPI Integration: Look up the latest production version of Python packages

  • Smart Fallback: Automatically falls back to PyPI when GitHub releases aren't available

  • Repository Aliases: Configure short aliases for commonly used repositories

Tools

  • get_latest_release - Returns the latest stable release version of a GitHub repository (with PyPI fallback)

  • get_pypi_version - Directly query PyPI for the latest stable version of any Python package

Configuration

Environment Variables

Create an optional .env file in the project root to configure the GitHub token:

export GITHUB_TOKEN="github_pat_TOKEN"

The GitHub token is optional but recommended to avoid API rate limits. The server will work without it, but with lower rate limits.

Repository Mapping

Configure repository aliases and PyPI packages in repo_mapping.json:

{ "fastapi": { "repo": "tiangolo/fastapi", "aliases": ["FastAPI"], "pypi_package": "fastapi" }, "nomad": { "repo": "hashicorp/nomad", "aliases": ["Nomad"] } }

Fields:

  • repo: GitHub repository in owner/name format (required)

  • aliases: List of alternative names for this repository (optional)

  • pypi_package: PyPI package name for fallback lookups (optional)

Running with Docker

docker-compose up --build

The server will be available at http://localhost:8000/mcp.

Running Locally

uv sync uv run uvicorn server:app --host 0.0.0.0 --port 8000

VSCode Integration

Add the following to your VSCode settings (.vscode/mcp.json or user settings):

{ "mcp": { "servers": { "releases-server": { "url": "http://localhost:8000/mcp" } } } }

Or add to ~/.vscode/mcp.json:

{ "servers": { "releases-server": { "url": "http://localhost:8000/mcp" } } }

After adding the configuration, restart VSCode or reload the window. The get_latest_release and get_pypi_version tools will be available to Copilot.

PyPI Integration

How It Works

The server includes two ways to query PyPI:

  1. Direct PyPI Lookup: Use get_pypi_version() to directly query PyPI for any package

  2. Automatic Fallback: When get_latest_release() can't find a GitHub release, it automatically checks PyPI if a pypi_package is configured in repo_mapping.json

PyPI Features

  • Filters out pre-release and dev versions

  • Returns only stable production versions

  • Includes package metadata (summary, homepage, URLs)

  • Handles non-existent packages gracefully

Usage Examples

Direct PyPI lookup:

from server import get_pypi_version # Query any package directly result = get_pypi_version("django") print(result) # Output: # Latest stable version for django (from PyPI): # Version: 6.0.1 # Summary: A high-level Python web framework... # PyPI URL: https://pypi.org/project/django/6.0.1/

With automatic fallback:

from server import get_latest_release # Configure in repo_mapping.json: # { # "my-package": { # "repo": "owner/repo", # "pypi_package": "my-package" # } # } # If GitHub fails, automatically falls back to PyPI result = get_latest_release("my-package")

Test PyPI integration:

uv run python3 -c " from server import get_latest_pypi_version result = get_latest_pypi_version('requests') print(f\"Version: {result['version']}\") "

Running Integration Tests

To run the integration suite using pytest (dependencies are handled ephemerally by uv). The tests will automatically load the GITHUB_TOKEN from your .env file if present:

uv run pytest test_integration.py -v

Or run specific test categories:

# Test GitHub functionality uv run pytest test_integration.py -k "github" -v # Test PyPI functionality uv run pytest test_integration.py -k "pypi" -v # Test with verbose output uv run pytest test_integration.py -v -s
-
security - not tested
F
license - not found
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quality - not tested

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