Npm Tools MCP Server

mcp-npm-tools

MCP server providing npm and Node.js package management tools for AI agents.

Tools

npm_search

Search the npm registry for packages by keyword. Returns name, description, version, weekly downloads, and last publish date.

npm_package_info

Get detailed information about a specific npm package: all published versions, dependencies, maintainers, repository URL, license, unpacked size, npm quality/popularity/maintenance scores, and weekly download count.

npm_dependency_audit

Analyze a package.json file to find outdated dependencies (compares pinned/range version against latest), deprecated packages, and known security vulnerabilities via the npm bulk advisory API.

npm_bundle_size

Estimate the bundle size of an npm package using the Bundlephobia API. Returns minified size, gzipped size, dependency count, and tree-shaking support indicators.

npm_compare_packages

Compare two or more packages side by side across multiple dimensions: weekly downloads, bundle size, number of runtime dependencies, last publish date, GitHub stars, and license.

Setup

npm install
npm run build

Usage with Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "npm-tools": {
      "command": "node",
      "args": ["D:/products/mcp-servers/mcp-npm-tools/dist/index.js"]
    }
  }
}

Development

npm run build   # compile TypeScript
npm start       # run the server

License

MIT