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docs-rs-mcp

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

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

English | [日本語](./README_JA.md)

## Overview

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

![](https://raw.githubusercontent.com/nuskey8/docs-rs-mcp/main/docs/images/img-chat.png)

## 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`:

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

### Claude Code

Run the following command:

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

### Cursor

You can install by pressing the button below:

[![Install MCP Server](https://cursor.com/deeplink/mcp-install-dark.svg)](https://cursor.com/install-mcp?name=docs-rs&config=JTdCJTIyY29tbWFuZCUyMiUzQSUyMm5weCUyMCU0MG51c2tleTglMkZkb2NzLXJzLW1jcCU0MGxhdGVzdCUyMiU3RA%3D%3D)

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](./LICENSE).

docs-rs-mcp

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