DocC MCP

A Model Context Protocol (MCP) server that exposes Apple DocC documentation archives to AI agents, enabling real-time access to Swift documentation without requiring training data or massive context windows.

- 🔍 Search Documentation: Find symbols, types, functions across all DocC archives
- 📖 Symbol Details: Get detailed information about specific Swift symbols
- 📄 Article Access: Get detailed information about tutorials and articles
- 🗂️ Browse Archives: Navigate DocC archive structures interactively
- ⚡ Real-time Access: Query current documentation without stale data
- 🎯 Filtered Search: Search by symbol type (class, struct, enum, protocol, etc.)

{ "mcpServers": { "docc": { "command": "node", "args": [ "/path/to/docc-mcp/dist/index.js", "--archive-path", "/path/to/your/docc/archives", "--archive-path", "~/Documents/Xcode/DerivedData" ] } } }

Configure archive paths using the--archive-pathargument:

{ "mcpServers": { "docc": { "command": "node", "args": [ "/path/to/docc-mcp/dist/index.js", "--archive-path", "/Users/yourname/docc-archives" ] } } }

{ "mcpServers": { "docc": { "command": "node", "args": [ "/path/to/docc-mcp/dist/index.js", "--archive-path", "/Users/yourname/Project1/docs", "--archive-path", "/Users/yourname/Project2/docs", "--archive-path", "~/Documents/Xcode/DerivedData" ] } } }

Using Xcode's generated documentation:

{ "mcpServers": { "docc": { "command": "node", "args": [ "/path/to/docc-mcp/dist/index.js", "--archive-path", "~/Library/Developer/Xcode/DerivedData/YourApp-/Build/Products/Debug/YourApp.doccarchive" ] } } }

- ~/Library/Developer/Xcode/DerivedData/YourApp-/Build/Products/Debug/Documentation/
- ~/Library/Developer/Xcode/DerivedData/YourApp-/Build/Products/Release*/Documentation/

- .build/plugins/Swift-DocC/outputs/YourPackage.doccarchive

- docs/(if you organize archives in a docs folder)
- Project root directory where you runswift package generate-documentation

{ "args": [ "/path/to/docc-mcp/dist/index.js", "--archive-path", "~/MySwiftPackage1/docs", "--archive-path", "~/MySwiftPackage2/.build/plugins/Swift-DocC/outputs", "--archive-path", "~/Library/Developer/Xcode/DerivedData" ] }

Lists all available DocC archives with metadata.

{ "name": "list_archives" }

{ "name": "search_docc", "arguments": { "query": "SwiftSyntax", "archive": "SwiftSyntax", "type": "struct" } }

Get detailed information about a specific symbol.

{ "name": "get_symbol", "arguments": { "symbolId": "documentation/swiftsyntax/tokensyntax", "archive": "SwiftSyntax" } }

Get detailed information about a specific article or tutorial.

{ "name": "get_article", "arguments": { "articleId": "meetcomposablearchitecture", "archive": "ComposableArchitecture" } }

{ "name": "browse_archive", "arguments": { "archive": "SwiftSyntax", "path": "documentation/swiftsyntax" } }

The server expects DocC archives in directories specified by--archive-path:

Run the test script to validate functionality:

- List all available archives
- Test search functionality
- Browse archive structures
- Validate symbol retrieval

{ "name": "search_docc", "arguments": { "query": "navigation", "type": "struct" } }

{ "name": "get_symbol", "arguments": { "symbolId": "documentation/swiftsyntax/tokensyntax", "archive": "SwiftSyntax" } }

{ "name": "browse_archive", "arguments": { "archive": "SwiftSyntax", "path": "documentation/swiftsyntax" } }

- Caching: Archives and symbols are cached for fast repeated access
- Search limits: Results limited to 50 per query for performance
- Lazy loading: Archives loaded on-demand
- File limits: Search limited to 100 files per archive for performance

This server works with standard DocC archives. To generate compatible archives:

# Using Swift-DocC swift package generate-documentation --target MyLibrary # Using Xcode # Product → Build Documentation

- ✅ Symbol metadata (title, kind, role, platforms)
- ✅ Documentation hierarchy
- ✅ Symbol references and relationships
- ✅ Code declarations with syntax highlighting
- ✅ Abstract/summary text
- ✅ Platform availability information
- ✅ Module organization

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