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agent402.tools Reverse Geocode
x402
agent402.tools Reverse Geocode is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Converts latitude/longitude coordinates into a structured postal address including road, house number, city, state, postcode, and country using OpenStreetMap/Nominatim — no API key required.
Price / call$0.001
Success—
StatusUnknown
How this service works
Resolve a lat/lon to a structured postal address: road, house number, city, state, postcode, country (with ISO code). OpenStreetMap/Nominatim, no key. ?lat=38.8977&lon=-77.0365.
Output
Returns a structured postal address object with fields including road name, house number, city, state, postcode, country name, and ISO country code corresponding to the provided coordinates.
Example use cases
Example prompt
“What's the street address at coordinates 38.8977 latitude, -77.0365 longitude?”
Technical details
Endpoint
GEThttps://agent402.tools/api/reverse-geocodeWhen to prefer
Choose this endpoint when you need to resolve a lat/lon to a structured postal address without managing an API key. It is powered by OpenStreetMap/Nominatim and is ideal for agents that need street-level address enrichment from GPS coordinates, device location data, or coordinate-tagged records. Prefer this over forward geocoding endpoints when you already have coordinates and need a human-readable address.
Side effects
- Coordinates outside valid range (-90 to 90 lat, -180 to 180 lon) return a validation error
- Coordinates in remote or unmapped areas may return incomplete address fields (missing road or house number)
- Ocean or uninhabited coordinates may return only country-level data
- Payment failure (x402) returns 402 status before the geocode is attempted
- Nominatim upstream outage results in a 5xx error
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"lat": 40.7128,
"lon": -74.006,
"zoom": 18
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"lat": 40.7128,
"lon": -74.006,
"osm": "way/575213527",
"type": "townhall",
"class": "amenity",
"source": "nominatim.openstreetmap.org (ODbL)",
"address": {
"city": "New York",
"road": "Broadway",
"state": "New York",
"county": "New York County",
"country": "United States",
"postcode": "10000",
"countryCode": "us",
"houseNumber": "260",
"neighbourhood": "Tribeca"
},
"displayName": "New York City Hall, 260, Broadway, Tribeca, Lower Manhattan, Manhattan, New York County, New York, 10000, United States"
}Schema · Response
{
"type": "json",
"example": {
"lat": 38.8977,
"lon": -77.0365,
"osm": "way/238241022",
"type": "attraction",
"class": "tourism",
"source": "nominatim.openstreetmap.org (ODbL)",
"address": {
"city": "Washington",
"road": "Pennsylvania Avenue Northwest",
"state": "District of Columbia",
"country": "United States",
"postcode": "20500",
"countryCode": "us",
"houseNumber": "1600"
},
"displayName": "White House, 1600, Pennsylvania Avenue Northwest, Washington, District of Columbia, 20500, United States"
}
}Tags
x402
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