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cargo-mcp

by jbr

Cargo MCP Server

A Model Context Protocol (MCP) server that provides safe access to Cargo operations for Rust projects.

Features

This MCP server exposes the following Cargo tools:

  • cargo_check - Verify code compiles without producing executables
  • cargo_clippy - Run the Clippy linter for code suggestions
  • cargo_test - Execute project tests
  • cargo_fmt_check - Check code formatting without modifying files
  • cargo_build - Build the project (debug or release mode)
  • cargo_bench - Run benchmarks
  • cargo_add - Add dependencies to Cargo.toml
  • cargo_remove - Remove dependencies from Cargo.toml
  • cargo_update - Update dependencies
  • cargo_clean - Remove artifacts that cargo has generated in the past
  • cargo_run - Run a binary or example

All tools support setting custom environment variables via the cargo_env parameter and rust toolchain with the toolchain parameter.

Installation

cargo install cargo-mcp

Usage with Claude Desktop

Add this to your Claude Desktop MCP configuration:

{ "mcpServers": { "cargo-mcp": { "command": "/path/to/cargo-mcp/cargo-mcp", "args": ["serve"] } } }

Optionally, include "env": {"CARGO_MCP_DEFAULT_TOOLCHAIN": {{toolchain}} } in the arguments where {{toolchain}} is something like "nightly" or "stable"

Safety Features

  • Only whitelisted Cargo commands are available
  • Path validation ensures the target is a valid Rust project (has Cargo.toml)
  • No arbitrary command execution
  • All commands run in the specified project directory

License

MIT or APACHE-2.0

-
security - not tested
A
license - permissive license
-
quality - not tested

local-only server

The server can only run on the client's local machine because it depends on local resources.

cargo-mcp

  1. Features
    1. Installation
      1. Usage with Claude Desktop
        1. Safety Features
          1. License

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