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GET /v1/volume

Volume of a 3D shape

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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/geometry-api

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Code snippets

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

Example response

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

{
    "data": {
        "shape": "sphere",
        "volume": 113.0973,
        "formula": "4⁄3·π·r³"
    },
    "meta": {
        "timestamp": "2026-06-02T16:51:56.182Z",
        "request_id": "dcde6f38-a07a-499a-b8f8-e2707fd92f86"
    },
    "status": "ok",
    "message": "Volume of a 3D shape",
    "success": true
}