IBAN Validator

IBAN Validator checks IBANs in bulk: mod-97 checksum, country length and SEPA membership, then extracts the bank code, branch, UK sort code and account number. It runs entirely offline, so no IBAN leaves the run.

Best for: Supplier and payout onboarding, payment file checks, CRM data cleansing and SEPA payment preparation.

How to validate IBANs in bulk

1. Add IBANs to IBANs (ibans), with or without spaces.
2. Click Start.
3. Filter on valid and read error for any failures.

How it works

Checks are done entirely inside the Actor using the ISO 13616 algorithm and SWIFT IBAN registry lengths. No IBAN leaves the run. A valid checksum shows the IBAN is well-formed, not that the account exists or is open.

Output

input, iban, valid, countryCode, sepa, bankCode, sortCode, accountNumber, formatted, error

Pricing (pay-per-event)

• iban-validated: $0.0005 per result ($0.5 / 1,000). Platform usage is included; you pay only for results.
• Example: 10,000 IBANs cost $5.00.

Example input

{
  "ibans": [
    "GB82WEST12345698765432",
    "FR1420041010050500013M02606",
    "NL91ABNA0417164301"
  ]
}

Example output

Real output for GB82WEST12345698765432 (a run on 15 Oct 2026). Invalid IBANs also include an error message.

{
  "input": "GB82WEST12345698765432",
  "iban": "GB82WEST12345698765432",
  "valid": true,
  "countryCode": "GB",
  "sepa": true,
  "checkDigits": "82",
  "bban": "WEST12345698765432",
  "formatted": "GB82 WEST 1234 5698 7654 32",
  "bankCode": "WEST",
  "branchCode": "123456",
  "sortCode": "12-34-56",
  "accountNumber": "98765432"
}

Use it via API, schedules and integrations

Run it in Apify Console, or call it from your own code with the Apify API or the Python and JavaScript clients. Save an input as a task and add a schedule to run it regularly, and send results to Slack, email, webhooks, Zapier, Make or n8n with Apify integrations. AI agents can find and run it through the Apify MCP server.

from apify_client import ApifyClient

client = ApifyClient("YOUR_APIFY_TOKEN")
run = client.actor("sterlingverify/iban-validator").call(run_input={"ibans": ["GB82WEST12345698765432"]})
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)

FAQ

Does a valid IBAN mean the account exists?

No. A valid checksum shows the IBAN is well-formed, not that the account exists, is open or who owns it. Use Confirmation of Payee or your bank for that.

Is my data sent anywhere?

No. All checks run inside the Actor using the ISO 13616 algorithm and SWIFT IBAN registry lengths.

Disclaimer

A valid IBAN format does not confirm that an account exists or who owns it; use Confirmation of Payee or your bank for that. Not financial advice.

Related sterlingVerify tools

Part of the sterlingVerify UK payments, KYB and data toolkit on Apify Store:

• UK Bank Account Validator: UK sort code and account number modulus check
• BIN Lookup: bulk BIN lookup for scheme, type, issuer and country
• EU VAT Number Validator (VIES): bulk EU VAT number checks against VIES
• Payments Region Checker: EEA, SEPA, SCA and interchange classification by country or BIN