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boring-api · geo — Polygon Centroid
x402
boring-api · geo — Polygon Centroid is a paid API for AI agents from geo.boring-api.com, paid per call via x402, $0.0005/call, status unknown (last checked 2026-09-15).
Computes the geometric centroid (center point) of a polygon using pure in-Worker spatial math, with no external API calls.
Price / call$0.0005
Success—
StatusUnknown
How this service works
Pure-library spatial math and timezone lookup. Distance, bearing, polygons, point-in-polygon, timezone-by-coords. No external API calls — all computed in-Worker.
Output
Returns a centroid object containing the computed geographic center point of the submitted polygon, expressed as latitude and longitude coordinates. Computation is performed entirely in-Worker with no external dependencies.
Example use cases
Example prompt
“Calculate the centroid of this polygon: {"type":"Polygon","coordinates":[[[-73.99,40.73],[-73.97,40.73],[-73.97,40.75],[-73.99,40.75],[-73.99,40.73]]]}”
Technical details
Endpoint
POSThttps://geo.boring-api.com/polygon-centroidWhen to prefer
Choose this endpoint when you need fast, serverless, no-external-call centroid computation for a polygon — especially when you want predictable low latency and privacy since no data leaves the Worker. Prefer over GIS platform APIs when you don't need map rendering or additional geospatial enrichment.
Side effects
- Invalid or malformed polygon object returns a 400 error
- Unclosed polygon ring may cause computation error or unexpected result
- Self-intersecting polygon may produce geometrically incorrect centroid
- Missing polygon property in request body causes validation failure
- Very large or complex polygon with many vertices may increase latency slightly
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| polygon | object |
Output
Schema · Response
{
"type": "object"
}Tags
x402
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