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mcp-crates

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mcp-crates

Crates.io MCP — wraps the crates.io REST API v1 (free, no auth)

Part of Pipeworx — an MCP gateway connecting AI agents to 1394+ live data sources.

Tools

Tool

Description

search_crates

Search crates.io for Rust packages by keyword. Returns crate name, description, downloads, latest version, and repo URL.

get_crate

Get full metadata for a specific crate (e.g., 'serde'). Returns description, downloads, latest version, repo, homepage, and categories.

get_versions

List all published versions for a crate in reverse chronological order. Returns version number, download count, and publish date.

get_crate_dependencies

List the dependencies of a specific crate version — what itself depends on. Returns each dependency with its version requirement, kind (normal/build/dev), optional flag, enabled features, and target. Version is optional (defaults to the latest stable). Use for "what does depend on", dependency audits, or sizing a crate's footprint.

get_crate_reverse_deps

List crates that DEPEND ON a given crate (reverse dependencies), most-downloaded first — answers "what uses ", "how widely adopted is ", "who depends on ". Returns the total dependent count plus the top dependents with their version requirement, dependency kind, and download counts.

Related MCP server: mcp-rust-docs

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "crates": {
      "url": "https://gateway.pipeworx.io/crates/mcp"
    }
  }
}

Or connect to the full Pipeworx gateway for access to all 1394+ data sources:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English:

ask_pipeworx({ question: "your question about Crates data" })

The gateway picks the right tool and fills the arguments automatically.

More

License

MIT

This server cannot be installed

A
license - permissive license
Not graded
quality - not tested
C
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity

Resources

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