Doc Fetcher MCP

🚀 doc-fetcher

A Claude Code plugin that fetches documentation and converts it into Markdown. It integrates with Dash for instant access to over 200 docsets, or it can directly fetch content from any URL.

🚀 Quick Start

Once installed, Claude can automatically fetch documentation. Just pose queries like:

"Look up the useEffect hook in React docs" "Get the Parameters section from useState documentation" "Fetch https://docs.anthropic.com/en/docs/claude-code/overview"

✨ Features

• Dash integration: Search your installed Dash docsets by name (e.g., react, typescript, python).
• Direct URL fetch: Retrieve documentation from any URL and convert it into clean Markdown.
• Section extraction: Extract only the specific section you need (e.g., "Parameters", "Usage").
• Token limiting: Control the response size for quick lookups.

📦 Installation

As a Claude Code plugin (recommended)

# Add the marketplace
/plugin marketplace add Robdel12/doc-fetcher-mcp

# Install the plugin
/plugin install doc-fetcher@doc-fetcher

Or via CLI:

claude plugin marketplace add Robdel12/doc-fetcher-mcp
claude plugin install doc-fetcher@doc-fetcher

Requirements

• Claude Code 1.0.33+
• Node.js 18+
• Dash (optional, for docset search)
  • Enable API Server: Dash > Settings > Integration > Enable API Server

💻 Usage Examples

Basic Usage

// Search React docs
{ "query": "useEffect", "docset": "react" }

// Search all docsets
{ "query": "async await" }

Advanced Usage

// Get a specific section
{ "query": "useEffect", "docset": "react", "section": "Parameters" }

// Fetch any URL
{ "url": "https://docs.anthropic.com/en/docs/claude-code/overview" }

// Limit response size
{ "query": "useState", "docset": "react", "maxTokens": 2000 }

Tool parameters

🔧 Technical Details

1. Dash search: Queries the local Dash API to find matching documentation.
2. Fetch: Retrieves the HTML content from Dash's local server or any URL.
3. Convert: Uses Readability + Turndown to extract clean Markdown.
4. Extract: Optionally pulls just the section you need.
5. Return: Markdown content with title, truncation status, and alternative results.

📚 Documentation

Development

# Clone and install
git clone https://github.com/Robdel12/doc-fetcher-mcp.git
cd doc-fetcher-mcp
npm install

# Test locally with Claude Code
claude --plugin-dir .

# Test the MCP server directly
echo '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"get_doc_content","arguments":{"query":"useState","docset":"react"}}}' | node src/index.js

📄 License

MIT