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GET /v1/area

Polygon area, centroid & properties

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10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

Custom headers (optional)
api.oanor.com/polygon-api

It works. Grab an API key and use it in your project.

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Code snippets

curl "https://api.oanor.com/polygon-api/v1/area" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/polygon-api/v1/area", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/polygon-api/v1/area");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/polygon-api/v1/area",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "area": 16,
        "convex": true,
        "centroid": [
            2,
            2
        ],
        "vertices": 4,
        "perimeter": 16,
        "orientation": "counter-clockwise",
        "signed_area": 16,
        "bounding_box": {
            "max_x": 4,
            "max_y": 4,
            "min_x": 0,
            "min_y": 0,
            "width": 4,
            "height": 4
        }
    },
    "meta": {
        "timestamp": "2026-06-03T17:42:05.342Z",
        "request_id": "9a83ac9c-56fc-4467-8eea-3afc34a473bf"
    },
    "status": "ok",
    "message": "Polygon area",
    "success": true
}