GitHub - herlon214/godoc-mcp: Extract useful documentation using go doc and AI

GoDoc MCP Server

🤖 AI-powered Go documentation that understands your code and fetches exactly what you need.

Instead of manually searching go doc, this tool analyzes your Go files and automatically retrieves relevant documentation for the packages you're actually using.

🚀 Setup (2 minutes)

1. Add to Claude Code

Run this command in your terminal:

claude mcp add godoc-mcp --scope user --env OPENROUTER_API_KEY=YOUR_KEY_HERE \
  -- npx -y godoc-mcp

Or manually add using json:

{
  "name": "godoc-mcp",
  "command": "npx",
  "args": ["-y", "godoc-mcp"],
  "env": {
    "OPENROUTER_API_KEY": "your-key-here"
  }
}

2. Get API Key

Sign up at openrouter.ai
Add $5-10 credits
Create an API key at openrouter.ai/keys
Replace your-key-here above

3. Restart Claude Code

Done! Now ask Claude to analyze any Go file and it will automatically fetch documentation.

⚡ Why Use This?

Before: Manually run go doc github.com/gorilla/mux.Router, go doc go.uber.org/zap.Logger, etc.

After: Just ask "What do these packages do?" and get comprehensive docs automatically.

Smart Features

🧠 AI analyzes your code to determine what docs you need
🎯 Context-aware - only fetches relevant documentation
⚡ Fast - uses optimized models for quick responses
🔍 External focus - prioritizes third-party packages over stdlib
📦 No installation - uses npx to always get latest version

💡 Example

package main

import (
    "github.com/gorilla/mux"
    "go.uber.org/zap"
)

func main() {
    r := mux.NewRouter()
    logger := zap.NewProduction()
    // ...
}

Ask Claude: "What do these packages do?"

Result: Automatically gets documentation for mux.Router, zap.NewProduction, and other relevant functions without you having to know what to search for.

🔧 Advanced

Different Models: Change inception/mercury-coder to anthropic/claude-3-haiku or openai/gpt-3.5-turbo in the tool parameters.

Local Development: Clone repo → npm install → npm run build

License: MIT | Issues: GitHub