MCP Package Docs Server

MIT License

23

2

Overview Schema Related Servers Reviews Score

Need Help?View Source Code Report Issue

Package Documentation MCP Server

An MCP (Model Context Protocol) server that provides LLMs with efficient access to package documentation across multiple programming languages.

Features

Multi-Language Support:
- Go packages via go doc
- Python libraries via built-in help()
- NPM packages via registry documentation
Smart Documentation Parsing:
- Structured output with description, usage, and examples
- Focused information to avoid context overload
- Support for specific symbol/function lookups
Performance Optimised:
- Built-in caching
- Efficient parsing
- Minimal memory footprint

Installation

npx -y mcp-package-docs

Usage

As an MCP Server

Add to your MCP settings configuration:

{
  "mcpServers": {
    "package-docs": {
      "command": "npx",
      "args": ["-y", "mcp-package-docs"]
    }
  }
}

The server provides three tools:

lookup_go_doc

Fetches Go package documentation

{
  "name": "lookup_go_doc",
  "arguments": {
    "package": "encoding/json", // required
    "symbol": "Marshal"        // optional
  }
}

lookup_python_doc

Fetches Python package documentation

{
  "name": "lookup_python_doc",
  "arguments": {
    "package": "requests",    // required
    "symbol": "get"          // optional
  }
}

lookup_npm_doc

Fetches NPM package documentation

{
  "name": "lookup_npm_doc",
  "arguments": {
    "package": "axios",      // required
    "version": "1.6.0"       // optional
  }
}

Example Usage in an LLM

const result = await use_mcp_tool({
  server_name: "package-docs",
  tool_name: "lookup_python_doc",
  arguments: {
    package: "requests",
    symbol: "post"
  }
});

Requirements

Node.js >= 20
Go (for Go package documentation)
Python 3 (for Python package documentation)
Internet connection (for NPM package documentation)

Development

# Install dependencies
npm i

# Build
npm run build

# Watch mode
npm run watch

Contributing

Fork the repository
Create your feature branch (git checkout -b feature/amazing-feature)
Commit your changes (git commit -m 'Add some amazing feature')
Push to the branch (git push origin feature/amazing-feature)
Open a Pull Request

License

This project is licensed under the MIT License - see the LICENSE file for details.

A

security – no known vulnerabilities (report Issue)

A

license - permissive license (MIT License)

A

quality - confirmed to work

Facilitates LLMs to efficiently access and fetch structured documentation for packages in Go, Python, and NPM, enhancing software development with multi-language support and performance optimization.