docs.rs MCP

An MCP server that enables searching for Rust crates and their documentation from docs.rs.

Overview

docs.rs MCP is an MCP server that searches the Rust crate documentation site docs.rs. By using this, AI Agents can search for required crates and obtain the latest documentation as needed.

Features

Tools specialized for searching docs.rs
Supports multiple use cases, from searching for crates themselves to searching for specific APIs
LLM-friendly Markdown output

Requirements

Node.js 18 or newer
VS Code, Cursor, Claude Desktop or any other MCP client

Setup

Visual Studio Code (VSCode)

Add the following to .vscode/mcp.json:

{
    "servers": {
        "docs-rs": {
            "command": "npx",
            "args": [
                "@nuskey8/docs-rs-mcp@latest",
                "-y"
            ]
        }
    }
}

Claude Code

Run the following command:

claude mcp add docs-rs -s project -- npx -y @nuskey8/docs-rs-mcp@latest

Cursor

You can install by pressing the button below:

Or, add a new MCP server that runs the npx @nuskey8/docs-rs-mcp command from Cursor Settings > MCP > Add new MCP Server.

Others

For other tools, please refer to the documentation as needed and add an MCP server that runs the npx @nuskey8/docs-rs-mcp command.

Tools

Tool	Description
`docs_rs_search_crates`	Searches for crates by keyword.
`docs_rs_readme`	Retrieves the README/overview of the specified crate.
`docs_rs_get_item`	Retrieves documentation for a specific item (module, struct, trait, enum, function, etc.) in a crate.
`docs_rs_search_in_crate`	Searches for traits, structs, methods, etc. from the all.html page in a crate.

License

This library is provided under the MIT License.