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agent402.tools Geo Distance (Haversine)
x402
agent402.tools Geo Distance (Haversine) is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Calculates the great-circle distance between two latitude/longitude coordinate pairs using the haversine formula, returning the result in both kilometers and miles.
Price / call$0.001
Success—
StatusUnknown
How this service works
Great-circle distance between two latitude/longitude points using the haversine formula. Returns kilometers and miles. Deterministic.
Output
Returns the great-circle distance between the two provided lat/lng points expressed in both kilometers and miles. The calculation is deterministic and uses the haversine formula.
Example use cases
Example prompt
“What is the straight-line distance between New York City (40.7128, -74.0060) and Los Angeles (34.0522, -118.2437) in both kilometers and miles?”
Technical details
Endpoint
POSThttps://agent402.tools/api/geo-distanceWhen to prefer
Use this endpoint when you need a precise, deterministic great-circle (as-the-crow-flies) distance between two geographic coordinates and want results in both kilometers and miles without setting up your own math. Prefer this over routing APIs when you only need straight-line distance, not road distance or travel time.
Side effects
- Missing or malformed 'from' or 'to' object with lat/lng fields returns a validation error
- Coordinates outside valid range (lat -90 to 90, lng -180 to 180) may return an error
- Payment failure or insufficient USDC balance prevents the call from completing
- Network timeout if the service is temporarily unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | object | { lat, lng } in decimal degrees |
| from | object | { lat, lng } in decimal degrees |
Output
Schema · Response
{
"type": "json",
"example": {
"km": 3935.75,
"miles": 2445.56
}
}Tags
x402
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