Validate an ISBN

Code-Snippets

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

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

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

Beispiel-Response

Echte Antwort dieses Endpoints, erfasst beim letzten Health-Check.

{
    "data": {
        "note": "ISBN-10 uses a mod-11 check (last char may be X); ISBN-13 uses a weighted mod-10 check. Hyphens and spaces are ignored.",
        "type": "ISBN-13",
        "valid": true,
        "inputs": {
            "isbn": "978-0-306-40615-7"
        },
        "normalized": "9780306406157"
    },
    "meta": {
        "timestamp": "2026-06-05T19:50:15.963Z",
        "request_id": "784ec90b-d813-46ab-9029-16dff202b2f5"
    },
    "status": "ok",
    "message": "Validate ISBN",
    "success": true
}