HSM Kit for Claude Code

io.github.hsm-kit/hsmkit

Local-first Base64, Luhn, key-component XOR, and synthetic ISO-0 PIN block tools.

client:Claude Code transport:stdio runtime:npm

Install HSM Kit in Claude Code

run in your project directory

claude mcp add hsmkit -- npx -y @hsmkit/mcp-server

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