Finance API

IBAN to BIC API

Convert any IBAN number to BIC/SWIFT routing code and bank name instantly. Fully offline — no external calls, no latency.

IBAN in, BIC out

Send the IBAN as a query parameter. Receive BIC, bank name and validation status.

Request

curl "https://api.omnizoek.nl/v1/finance/iban-to-bic?iban=NL91ABNA0417164300" \
  -H "X-API-Key: omni_test_..."

Response

{
  "iban": "NL91ABNA0417164300",
  "bic": "ABNANL2A",
  "bank_name": "ABN AMRO Bank N.V.",
  "bank_city": "Amsterdam",
  "valid": true
}

💳

Validate IBANs on entry and auto-fill the BIC. Fewer errors in payment processing.

📊

Automatically enrich bank account records with BIC codes. Works as an Exact Online webhook.

✅

Check whether an IBAN is valid for SEPA payments before submitting a transfer.

🔄

Process large batches of historical bank account records and fill in missing BIC codes.

1,000 free calls per month

No credit card required. Then €0.005 per call.