Validate a card number

Code snippets

curl "https://api.oanor.com/creditcard-api/v1/validate" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/creditcard-api/v1/validate", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/creditcard-api/v1/validate");
curl_setopt($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/creditcard-api/v1/validate",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

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

{
    "data": {
        "brand": "visa",
        "valid": true,
        "length": 16,
        "formatted": "4111 1111 1111 1111",
        "cvv_length": 3,
        "luhn_valid": true,
        "length_valid": true,
        "number_masked": "411111******1111"
    },
    "meta": {
        "timestamp": "2026-05-30T09:00:24.956Z",
        "request_id": "5ca0940a-7df7-4ee7-bae8-4c0ef88cbde4"
    },
    "status": "ok",
    "message": "Card validated",
    "success": true
}