Cargo Metadata MCP Server

What is Cargo Metadata MCP Server?

Cargo Metadata MCP Server implements a Model Context Protocol (MCP) server that exposes metadata from Cargo (Rust) projects. It provides tools to retrieve package information, dependencies, build targets, workspace details, and feature flags. This tool is for developers working with Rust projects who want to inspect Cargo metadata programmatically via MCP clients.

How to use Cargo Metadata MCP Server?

Build the server with cargo build --release, then run it with cargo run or directly execute ./target/release/mcp-attr-example-cargo-metadata. To integrate with MCP clients like Claude Desktop, add the server configuration to the client settings JSON, specifying the command path to the binary.

Key features of Cargo Metadata MCP Server

• Get project metadata
• Get package information
• Get dependencies list
• Get build targets
• Get workspace information
• Get features information

Use cases of Cargo Metadata MCP Server

• Inspect Rust project metadata programmatically
• Analyze dependencies in a Cargo workspace
• Retrieve feature flags for conditional compilation
• Check build targets for cross-compilation

FAQ from Cargo Metadata MCP Server

What dependencies does this server require?

It requires a Rust runtime and uses the cargo_metadata, mcp-attr, tokio, and serde crates.

How do I connect this server with Claude Desktop?

Add an entry to the MCP client configuration JSON with the command field pointing to the server binary (e.g., "command": "path/to/mcp-attr-example-cargo-metadata").

Can I specify a different Cargo.toml file?

Yes, each tool accepts an optional manifest_path parameter. If omitted, the current directory’s Cargo.toml is used.

What is the license for this server?

The project is licensed under MIT or Apache-2.0.

What tools does the server expose?

It exposes six tools: get_metadata, get_package_info, get_dependencies, get_targets, get_workspace_info, and get_features.