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GET /v1/rectangle

Golden rectangle

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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/goldenratio-api

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

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Code snippets

curl "https://api.oanor.com/goldenratio-api/v1/rectangle" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/goldenratio-api/v1/rectangle", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/goldenratio-api/v1/rectangle");
curl_setopt($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/goldenratio-api/v1/rectangle",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

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

{
    "data": {
        "area": 16180.339887,
        "note": "Golden rectangle: long side = short · φ. Removing a square leaves a smaller golden rectangle.",
        "inputs": {
            "short_side": 100
        },
        "long_side": 161.803399
    },
    "meta": {
        "timestamp": "2026-06-05T19:50:18.828Z",
        "request_id": "a02f991c-6a65-4bad-8c36-549d4ef88c21"
    },
    "status": "ok",
    "message": "Golden rectangle",
    "success": true
}