Dociium

Fast documentation access for Rust, Python, and Node.js packages via MCP (Model Context Protocol)

Get instant access to documentation and source code from your AI assistant. Works with Claude Desktop, Continue, and other MCP-compatible tools.

Quick Start

Install

git clone https://github.com/labiium/dociium.git
cd dociium
cargo install --path .

Configure your MCP client

Add to your MCP client configuration:

{
  "servers": {
    "dociium": {
      "command": "dociium"
    }
  }
}

Use with your AI assistant

Ask your AI assistant:

• "Show me the documentation for tokio::sync::Mutex"
• "Search for HTTP client crates in Rust"
• "What traits does Vec implement?"
• "Get the source code for the requests.get function in Python"

What it does

• 🦀 Rust: Search crates.io, get documentation, view source code, explore trait implementations
• 🐍 Python: Access local package documentation and source code
• 📦 Node.js: Browse TypeScript/JavaScript package implementations
• ⚡ Fast: Intelligent caching makes repeated queries instant
• 🔍 Smart: Fuzzy search, trait exploration, and cross-references

Available Tools

Examples

Rust Documentation

Ask: "What is tokio::sync::Mutex and how do I use it?"

Your AI gets the full documentation, examples, and usage patterns.

Python Packages

Ask: "Show me the implementation of requests.get"

Dociium finds the function in your local environment and provides the source.

Crate Discovery

Ask: "Find me async HTTP client libraries for Rust"

Get a curated list with descriptions and popularity metrics.

Performance

• First request: ~1 second (fetches and caches)
• Cached requests: <1ms
• Memory usage: ~30MB + 5MB per cached crate
• No builds required: Uses pre-built documentation

Configuration

Set custom cache directory:

export RDOCS_CACHE_DIR=/path/to/cache

Default cache: ~/.cache/rdocs-mcp (Linux/Mac) or %APPDATA%\rdocs-mcp (Windows)

Troubleshooting

Documentation not found?

• Ensure the package exists on docs.rs (Rust) or in your local environment (Python/Node)
• Check spelling and use exact paths like tokio::sync::Mutex

Cache issues?

rm -rf ~/.cache/rdocs-mcp  # Clear cache and retry

Need help?

• Check the detailed documentation
• Open an issue

Development

# Build from source
cargo build --release

# Run tests
cargo test

# Development mode with debug logging
RUST_LOG=debug cargo run

License

MIT OR Apache-2.0

Get documentation without leaving your AI conversation.