# US Address Geocoder (Census Bureau)

> US Address Geocoder (Census Bureau) is a paid API for AI agents from gogeta2-u35175.vm.elestio.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-29).

Geocodes a single US street address using the U.S. Census Bureau, returning standardized address, lat/lon, FIPS codes, census tract, block group, ZCTA, metro area, and congressional district.

## Facts

- Endpoint: GET https://gogeta2-u35175.vm.elestio.app/agents/v1/geo/us-address?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/us-address-geocoder-census-bureau-badadd56
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8k7y5QepjEbKUiTuw5j4R

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability us-address-geocoder-census-bureau-badadd56
```

Example prompt: Can you geocode 350 5th Ave, New York, NY 10118 and give me the lat/lon, census tract, block group, and congressional district using the Census Bureau?

## When to prefer this

Prefer this endpoint when you need authoritative, government-sourced geocoding with official Census GEOIDs (tract, block group, ZCTA, congressional district, FIPS codes) rather than just lat/lon from a commercial provider. Ideal for compliance, demographic analysis, political redistricting, or any use case requiring Census-aligned geographic identifiers. The no-match-no-charge pricing makes it low-risk for batch validation workflows.

## Known failure modes

- No address match found (no charge): address too ambiguous, incomplete, or not in Census database
- Malformed address string: missing house number or unrecognizable format returns an error
- Non-US address: endpoint only handles US addresses, international addresses will not match
- Rate limiting or upstream Census API downtime may cause timeouts or errors

## How this service works

Geocode one US street address with the U.S. Census Bureau: standardised address, lat/lon, state, county, census tract, block group, ZCTA, metro area, congressional district (official GEOIDs). No match = not charged.

## Output

Returns a standardized US address, latitude and longitude coordinates, FIPS state and county codes, census tract ID, block group, ZCTA (ZIP Code Tabulation Area), metro area (CBSA), and congressional district — all as official GEOIDs from the U.S. Census Bureau. If no match is found, the call is not charged.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "description": "One-line US address with house number, e.g. 350 5th Ave, New York, NY 10118"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/us-address-geocoder-census-bureau-badadd56/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gogeta2-u35175.vm.elestio.app](https://www.zero.xyz/host/gogeta2-u35175.vm.elestio.app/llms.txt)