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Reverse Geocode Coordinates to Address (OpenStreetMap Nominatim)
x402
Reverse Geocode Coordinates to Address (OpenStreetMap Nominatim) is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).
Converts latitude/longitude coordinates into a human-readable nearest street address using OpenStreetMap Nominatim data.
Price / call$0.01
Success—
StatusUnknown
How this service works
Reverse-geocode coordinates to the nearest address (OpenStreetMap Nominatim) — Genesis402 / UnyKorn Operator Network
Output
Returns a human-readable address corresponding to the provided coordinates, including components such as street name, house number, neighbourhood, city, postcode, and country, derived from OpenStreetMap Nominatim at the requested detail level.
Example use cases
Geotagged photo location lookup
“I have a photo with GPS coordinates 51.5074, -0.1278 — what's the actual street address at that spot?”
Delivery driver location annotation
“Our driver's GPS just pinged at lat 40.7128, lon -74.0060 — what address does that correspond to?”
Field survey address resolution
“I recorded coordinates 35.6895, 139.6917 at zoom level 16 during a site survey — can you tell me the nearest address?”
Technical details
Endpoint
POSThttps://twin.unykorn.org/reverse-geocode?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a pay-per-call, no-key-required reverse geocoding service backed by OpenStreetMap Nominatim data, especially in autonomous agent pipelines that already use x402 micropayment rails. Suitable for occasional lookups without API key management overhead.
Side effects
- Coordinates outside valid range (-90 to 90 lat, -180 to 180 lon) will be rejected
- Remote or uninhabited areas may return sparse or no address data
- Payment failure (402) if USDC balance is insufficient
- Nominatim rate limits or upstream outages may cause timeouts
- Very low zoom values may return only country or region-level results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| params | object |
Tags
x402
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