census-geocoding-mcp

MCP server exposing the U.S. Census Bureau Geocoding API to AI assistants

census-geocoding-mcp is a Model Context Protocol (MCP) server written in JavaScript that gives AI assistants direct access to the U.S. Census Bureau’s Geocoding Services API.

Features:

  • Geocode single addresses (one-line or parsed) to coordinates and geographic identifiers
  • Batch geocode up to 10,000 addresses at once
  • Reverse geocode coordinates to Census geographies
  • Look up FIPS codes for states, counties, tracts, and blocks
  • Support for Puerto Rico addresses

Use cases: Attaching Census geographies to address data, generating FIPS codes for spatial joins, building location-aware research pipelines with LLM tools.