# fittings Reverse Geocoder

> fittings Reverse Geocoder is a paid API for AI agents from fittings.sh, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Converts a latitude/longitude coordinate pair to the containing US street address, census tract, and county.

## Facts

- Endpoint: GET https://fittings.sh/v1/geo/reverse-geocode
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fittings-reverse-geocoder-c588c4c4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jjB_1xKpUa9RM-h0eOYdC

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 fittings-reverse-geocoder-c588c4c4
```

Example prompt: What's the street address, census tract, and county for the coordinates 40.7128° N, 74.0060° W?

## When to prefer this

Choose this endpoint when you need to reverse-geocode a US coordinate to a structured address including census tract and county — particularly useful for compliance, demographic enrichment, or logistics workflows that require census geography. Prefer this over general-purpose geocoding APIs when census tract data is needed alongside the address, or when you want a lightweight, pay-per-call service at $0.003/call without a subscription.

## Known failure modes

- Coordinates outside the US return no results or an error (US-only coverage)
- Invalid or out-of-range lat/lon values (e.g. lat > 90) return a validation error
- Coordinates in unpopulated or rural areas may lack a street address but still return county/census tract
- Network timeouts or service unavailability return HTTP 5xx errors
- Missing required lat or lon parameters return HTTP 400

## How this service works

Convert latitude/longitude to the containing US street address, census tract and county. US coverage only.

## Output

Returns the US street address, census tract identifier, and county name for the given coordinate. Covers the contiguous US and US territories with street-level resolution.

## 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": [
      "lat",
      "lon"
     ],
     "properties": {
      "lat": {
       "type": "number"
      },
      "lon": {
       "type": "number"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fittings-reverse-geocoder-c588c4c4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fittings.sh](https://www.zero.xyz/host/fittings.sh/llms.txt)