zip-county-mcp MCP Server

A Model Context Protocol (MCP) server that lets Claude look up ZIP-to-county and county-to-ZIP relationships, using HUD's official USPS ZIP Code Crosswalk API — including residential-address overlap…

Local server

What is the zip-county-mcp Server?

zip-county-mcp is an MCP project maintained in the imelendez/zip-county-mcp repository. The maintainer describes its purpose as “A Model Context Protocol (MCP) server that lets Claude look up ZIP-to-county and county-to-ZIP relationships, using HUD's official USPS ZIP Code Crosswalk API — including…”. Read the project documentation for the complete scope.

Source

Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

ToolWhat it does
zip_to_countyzip_code, min_overlap_pct=0) — county/counties for a ZIP, with % overlap
zips_in_countycounty_fips, min_overlap_pct=0) — ZIP codes in a county, with % overlap
batch_zip_to_countyzip_codes, min_overlap_pct=0) — same as above, multiple ZIPs at once