Cargo MCP

The server provides the following Cargo tools:

- cargo_build- Build a Rust project with Cargo
- cargo_test- Run tests for a Rust project
- cargo_run- Run a Rust binary
- cargo_check- Check a project for errors without building
- cargo_clippy- Run Clippy linter
- cargo_fmt- Format Rust code using rustfmt
- cargo_doc- Generate documentation
- cargo_clean- Clean build artifacts
- cargo_tree- Display dependency tree
- cargo_update- Update dependencies in Cargo.lock
- cargo_bench- Run benchmarks

- Python 3.8 or higher
- Rust and Cargo installed on your system
- Access to install Python packages

git clone <repository-url> cd cargo-mcp

Add the server to yourclaude_desktop_config.json:

MacOS:~/Library/Application Support/Claude/claude_desktop_config.json
Windows:%APPDATA%/Claude/claude_desktop_config.json

{ "mcpServers": { "cargo-mcp": { "command": "cargo-mcp" } } }

The server can be used with any MCP-compatible client. Start the server using:

You can test the server using the MCP Inspector:

npx @modelcontextprotocol/inspector cargo-mcp

- release(boolean, optional): Build in release mode with optimizations
- features(array, optional): List of features to activate
- target(string, optional): Build for the given target triple
- workspace_path(string, optional): Path to the workspace root (auto-detected if not provided)

- test_name(string, optional): Name of specific test to run
- release(boolean, optional): Run tests in release mode
- features(array, optional): List of features to activate
- workspace_path(string, optional): Path to the workspace root

- bin_name(string, optional): Name of the binary to run (for multi-binary projects)
- args(array, optional): Arguments to pass to the binary
- release(boolean, optional): Run in release mode
- features(array, optional): List of features to activate
- workspace_path(string, optional): Path to the workspace root

Check a Rust project for errors without building it.

- features(array, optional): List of features to activate
- workspace_path(string, optional): Path to the workspace root

- fix(boolean, optional): Automatically apply suggested fixes
- features(array, optional): List of features to activate
- workspace_path(string, optional): Path to the workspace root

- check(boolean, optional): Check if files are formatted without modifying them
- workspace_path(string, optional): Path to the workspace root

Generate documentation for a Rust project.

- open(boolean, optional): Open documentation in browser after generation
- no_deps(boolean, optional): Don't build documentation for dependencies
- workspace_path(string, optional): Path to the workspace root

- workspace_path(string, optional): Path to the workspace root

- package(string, optional): Package to display tree for
- features(array, optional): List of features to activate
- workspace_path(string, optional): Path to the workspace root

- package(string, optional): Specific package to update
- workspace_path(string, optional): Path to the workspace root

- bench_name(string, optional): Name of specific benchmark to run
- features(array, optional): List of features to activate
- workspace_path(string, optional): Path to the workspace root

The server automatically detects Rust projects by searching forCargo.tomlfiles. It walks up the directory tree from the current working directory to find the nearestCargo.tomlfile and uses that directory as the workspace root.

You can override this behavior by providing theworkspace_pathparameter to any tool.

The server provides detailed error messages and logs for troubleshooting:

- Checks if Cargo is installed and available in PATH
- Validates that Cargo.toml exists in the target directory
- Captures both stdout and stderr from Cargo commands
- Provides detailed command execution information
- Clone the repository
- Install development dependencies:

This project is licensed under the MIT License - see the LICENSE file for details.

Contributions are welcome! Please feel free to submit a Pull Request.

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