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GET /v1/checkdigit

Compute a check digit

Try it live

One free call per session — no signup, no API key. Goes through oanor's gateway.

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

Code snippets

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