Cursor Rust Tools MCP Server

What is Cursor Rust Tools?

Cursor Rust Tools is an MCP server that enables AI agents in Cursor to access Rust type information from the Rust Analyzer LSP, retrieve crate documentation, and run Cargo commands. It includes a UI for configuration and is aimed at Rust developers using Cursor’s AI features.

How to use Cursor Rust Tools?

Install via cargo install --git https://github.com/terhechte/cursor-rust-tools. Run with UI using cursor-rust-tools or headlessly with cursor-rust-tools --no-ui. Configure projects in ~/.cursor-rust-tools and add the generated mcp.json to your project’s .cursor/ directory to connect it with Cursor.

Key features of Cursor Rust Tools

• Get documentation for a crate or a specific symbol (e.g., tokio::spawn)
• Get hover information (type, description) for a symbol in a file
• List all references for a symbol in a file
• Retrieve the implementation file for a given symbol
• Find a type by name in a project and return its hover information
• Run cargo test and cargo check from the AI

Use cases of Cursor Rust Tools

• AI-assisted coding with accurate, up-to-date Rust type information
• Fetching current crate documentation without relying on outdated training data
• Debugging and refactoring by examining symbol references and implementations
• Automating code verification by triggering cargo check from chat