zippopotam

Wraps the free Zippopotam.us API for looking up location data from ZIP and postal codes. No authentication required. Hosted via Pipeworx's MCP gateway, so you can drop in a remote URL instead of running a local server. Part of a larger gateway that bundles 673+ data sources, but available standalone if you just need postal code lookups. Useful when you're building location-aware features and need to resolve a ZIP code to city, state, or coordinate data. The ask_pipeworx interface lets you query in natural language rather than calling tool methods directly, though standard MCP tool calls work too.