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GET /v1/object-size

Object size

Try it live

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

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

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

Get an API key

Code snippets

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

Example response

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

{
    "data": {
        "note": "Physical size d = 2·D·tan(δ/2). The diameter is in the same units as the distance.",
        "size": 3474.19111839,
        "inputs": {
            "distance": 384400,
            "angular_size_radians": 0.009037896643
        }
    },
    "meta": {
        "timestamp": "2026-06-05T11:30:24.515Z",
        "request_id": "8dff9ca6-99f6-46e9-ae0b-ee27857828f4"
    },
    "status": "ok",
    "message": "Object size",
    "success": true
}