password breach check mcp for Claude Code

io.github.mrfentmen/password-breach-check-mcp

Check if a password has appeared in known breaches without sending the password. No key required.

client:Claude Code transport:stdio runtime:npm

Install password breach check mcp in Claude Code

run in your project directory

claude mcp add password-breach-check-mcp -- npx -y password-breach-check-mcp

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