Census Geocoder

liveGovernmentGeography

US Census Bureau Geocoder MCP

3tools
0msauth
free tier50 calls/day

Tools

census_geocode_address

Geocodes a US street address to coordinates plus its Census geography — tract, block, place, congressional and school district GEOIDs.

No parameters required.

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census_reverse_geocode

Returns every US Census geography containing a latitude/longitude — state, county, tract, 2020 block, place, district — with GEOIDs.

No parameters required.

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census_geocode_batch

Geocode up to ${BATCH_MAX} US addresses in a single call and return each one's match status, standardized address, coordinates, and state/county/tract/block FIPS codes. Use this instead of looping cen

No parameters required.

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Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash
curl -X POST https://gateway.pipeworx.io/census-geocoder/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash
curl -X POST https://gateway.pipeworx.io/census-geocoder/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"census_geocode_address","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("census_geocode_address", {});
ask_pipeworx
// Or ask in plain English:
const answer = await px.ask("us census bureau geocoder mcp");