SEPA IBAN validation API

Validate IBANs before SEPA payments fail

Use the IBAN-Test API before SEPA direct debit and payment submissions to catch typos, invalid check digits and available bank data issues earlier.

Get API keyView API documentation

Reduce avoidable SEPA failures

Failed SEPA payments often start with simple input mistakes. Validate IBANs before mandates, checkout records or payment runs move downstream.

Before mandate storage

Check IBAN data when customers enter SEPA direct debit details.

Before payment files

Run checks before exporting or submitting payment data to reduce preventable rejects.

For operations teams

Use API validation in SaaS, accounting, ERP and back-office workflows.

curl -H "Authorization: Bearer YOUR_API_TOKEN" \
  "https://www.iban-test.eu/api/iban/validate?iban=DE89370400440532013000"

IBAN validation reduces input and plausibility errors. It does not guarantee account ownership or successful settlement.

IBAN Validation APIIBAN Check APIAPI Documentation

Bank data validation

Validation against bank directories

For these countries, we check IBANs against available bank directories and return bank details such as institution, city and BIC when available.

DEGermany ATAustria BEBelgium FRFrance LULuxembourg NLNetherlands PTPortugal ESSpain

IBAN syntax check

Format checks for 111 IBAN countries

Check IBANs for a valid structure, correct length and checksum. This helps you catch typos and transposed digits before a payment fails. Additional bank validation against real bank directories is available for the countries listed above.

MCP Server for AI Agents - Connect AI clients to IBAN validation tools - https://www.iban-test.eu/mcp - MCP Documentation