Npm

Connects Claude to the npm registry and Bundlephobia API for package research and dependency analysis. You get five tools: search packages by keyword, pull detailed metadata on any package including maintainers and npm scores, audit a package.json for outdated or vulnerable dependencies using npm's bulk advisory API, check bundle sizes with minified and gzipped estimates, and compare multiple packages side by side on downloads, size, and GitHub stars. Useful when you're evaluating libraries, auditing projects for security issues, or need to justify package choices with hard numbers during code review.