Zippopotam for Claude Code

io.github.pipeworx-io/zippopotam

Zippopotam MCP — wraps Zippopotam.us ZIP/postal code API (free, no auth)

client:Claude Code transport:streamable-http

Install Zippopotam in Claude Code

run in your project directory

claude mcp add --transport http zippopotam https://gateway.pipeworx.io/zippopotam/mcp

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