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Reverse Geocoding API (x402.donnyautomation.com)
x402
Reverse Geocoding API (x402.donnyautomation.com) is a paid API for AI agents from x402.donnyautomation.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Converts latitude and longitude coordinates to a human-readable street address and place name using OpenStreetMap Nominatim with worldwide coverage.
Price / call$0.01
Success—
StatusUnknown
How this service works
Reverse geocoding: latitude/longitude to a street address, worldwide, via OpenStreetMap Nominatim. Returns displayName plus structured address (road, city, state, postcode, country), place type and attribution. Requires BOTH ?lat= and ?lon=. Errors: 400 bad_coords (either missing or non-numeric) or coords_out_of_range (lat -90..90, lon -180..180), 404 no_match for ocean or unmapped points, 502 geocoder_unavailable. The OPPOSITE direction (name to coordinates) is /geocode.
Output
Returns the display name (full human-readable address string), structured address fields (road, city, state, postcode, country), plus place type and category. Returns 404 for ocean coordinates or unmapped areas — never fabricates an address.
Example use cases
Delivery tracking address display
“I have a delivery driver's GPS position at latitude 37.7749, longitude -122.4194 — can you tell me the street address there so I can show it on the tracking dashboard?”
Geofence entry alert labeling
“My IoT device just entered a geofence at coordinates 51.5074 north, -0.1278 west — what's the human-readable address or place name at that location so I can label the alert?”
Photo location tagging
“This photo has EXIF coordinates of latitude 35.6762 and longitude 139.6503 — what street address or neighborhood does that correspond to so I can tag it properly?”
Technical details
Endpoint
GEThttps://x402.donnyautomation.com/reverse-geocodeWhen to prefer
Choose this endpoint when you need a reliable, worldwide reverse geocode with no risk of hallucinated addresses — it explicitly returns 404 rather than fabricating a result. Ideal for AI agents in logistics, delivery tracking, geofencing, and mapping that need trustworthy structured address data. At $0.01 USDC per call it is cost-effective for moderate-volume use cases.
Side effects
- Coordinates in ocean or unmapped area return 404 with no fabricated fallback
- Invalid latitude (outside -90..90) or longitude (outside -180..180) returns an error
- Missing lat or lon query parameter results in a validation error
- Very remote or sparse areas may return only partial address fields (e.g. country only)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ts": "2026-08-01T00:00:00.000Z",
"lat": 48.8584,
"lon": 2.2945,
"address": {
"city": "Paris",
"road": "Avenue Gustave Eiffel",
"country": "France",
"postcode": "75007"
},
"attribution": "Data © OpenStreetMap contributors, ODbL. Geocoding via Nominatim.",
"displayName": "Tour Eiffel, Avenue Gustave Eiffel, Paris, France"
}
}Tags
x402
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