crt sh mcp for Claude Code

io.github.mrfentmen/crt-sh-mcp

crt.sh: certificate transparency search with issuer and expiry dates - keyless.

client:Claude Code transport:stdio runtime:npm

Install crt sh mcp in Claude Code

run in your project directory

claude mcp add crt-sh-mcp -- npx -y @mrfentmen/crt-sh-mcp

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