
Npm Plus
Connects Claude to the npm registry, Bundlephobia, and Snyk APIs to answer package questions without opening browser tabs. Exposes eight tools: search packages, compare download counts across multiple packages, check bundle sizes, scan for vulnerabilities, inspect dependency trees, and view download trends with sparklines. Useful when you're evaluating libraries and want to ask "compare zustand vs jotai" or "are there vulnerabilities in express" directly in your editor. No API keys required since it uses public endpoints. Works with Claude Desktop, Cursor, and any MCP client over stdio transport.
- tools
- 8
- transport
- STDIO
- last updated
- Mar 10, 2026
Tools
8 toolsPublic tool metadata for what this MCP can expose to an agent.
searchSearch npm packages by query
Search npm packages by query
No parameter schema in public metadata yet.
package_infoGet detailed info: description, license, repo, dependencies
Get detailed info: description, license, repo, dependencies
No parameter schema in public metadata yet.
downloadsGet download stats for a package
Get download stats for a package
No parameter schema in public metadata yet.
compare_downloadsCompare download counts across multiple packages
Compare download counts across multiple packages
No parameter schema in public metadata yet.
bundle_sizeGet bundle size (minified + gzip) via Bundlephobia
Get bundle size (minified + gzip) via Bundlephobia
No parameter schema in public metadata yet.
vulnerabilitiesGet vulnerability info and advisory links
Get vulnerability info and advisory links
No parameter schema in public metadata yet.
dependency_treeShow direct dependencies as a tree
Show direct dependencies as a tree
No parameter schema in public metadata yet.
download_trendsDaily breakdown with sparkline
Daily breakdown with sparkline
No parameter schema in public metadata yet.
Sponsors
Readme
mcp-server-npm-plus
npm package research from your AI assistant. Search packages, check bundle sizes, scan for vulnerabilities, compare download counts, and inspect dependency trees. No API keys needed.
npx mcp-server-npm-plus
Works with Claude Desktop, Cursor, VS Code Copilot, and any MCP client. Uses public npm registry APIs.
MCP server for npm package search, bundle size, and vulnerability scanning
Demo built with remotion-readme-kit
Why
Details
- Repository
- github.com/ofershap/mcp-server-npm-plus
- Category
- Search & Web Crawling
- Package
mcp-server-npm-plus- Transport
- STDIO
- Registry
- MCP registry, active