esm mcp for Claude Code

io.github.mrfentmen/esm-mcp

esm.sh CDN: resolve npm package versions and browse module files. No key required.

client:Claude Code transport:stdio runtime:npm

Install esm mcp in Claude Code

run in your project directory

claude mcp add esm-mcp -- npx -y esm-mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs