# x402-seller Reverse Geocoder (lat/lng to place + timezone)

> x402-seller Reverse Geocoder (lat/lng to place + timezone) is a paid API for AI agents from x402-seller.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Converts latitude/longitude coordinates into a human-readable place name and IANA timezone string.

## Facts

- Endpoint: GET https://x402-seller.onrender.com/geo/reverse
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-seller-reverse-geocoder-lat-lng-to-place-timezone-a1e3e79e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_f2i9jpmvoa0cQ2ChqunpH

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 x402-seller-reverse-geocoder-lat-lng-to-place-timezone-a1e3e79e
```

Example prompt: What place name and timezone correspond to latitude 37.7749 and longitude -122.4194?

## When to prefer this

Use this endpoint when you have raw GPS coordinates (latitude and longitude) and need to identify the human-readable location name and/or IANA timezone — especially useful for labeling telemetry data, localizing timestamps, or enriching location-tagged records. Prefer this over forward geocoding when coordinates are already known.

## Known failure modes

- Missing lat or lng query parameter returns an error
- Invalid non-numeric lat/lng values cause a parsing error
- Coordinates in remote ocean areas may return sparse or generic place names
- Service unavailable if the Render.com host is cold-starting (slow initial response)

## How this service works

Reverse geocode GPS coordinates (latitude/longitude) into a place name/address and IANA timezone.

## Output

Returns the display name (human-readable place/city/region name), IANA timezone string (e.g. 'America/Los_Angeles'), and the input lat/lng echoed back.

## 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",
      "lng"
     ],
     "properties": {
      "lat": {
       "type": "string",
       "description": "Latitude"
      },
      "lng": {
       "type": "string",
       "description": "Longitude"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "lat": {
       "type": "number"
      },
      "lng": {
       "type": "number"
      },
      "timezone": {
       "type": "string"
      },
      "display_name": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-seller-reverse-geocoder-lat-lng-to-place-timezone-a1e3e79e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-seller.onrender.com](https://www.zero.xyz/host/x402-seller.onrender.com/llms.txt)