/v1/power
Lens power / diopters
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10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.
It works. Grab an API key and use it in your project.
Get an API keyCode snippets
curl "https://api.oanor.com/lens-api/v1/power" \ -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/lens-api/v1/power", {
headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/lens-api/v1/power");
curl_setopt($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/lens-api/v1/power",
headers={"x-oanor-key": "oanor_test_..."}
)
Example response
A real response from this endpoint, captured by the latest health check.
{
"data": {
"mode": "focal_to_power",
"formula": "D = 1/f (f in metres).",
"focal_length_m": 0.1,
"power_diopters": 10
},
"meta": {
"timestamp": "2026-06-04T10:18:47.142Z",
"request_id": "c6cc9210-616d-4e48-a0d9-37c05762d500"
},
"status": "ok",
"message": "Lens power / diopters",
"success": true
}