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opendata402 IBAN Validator
x402
opendata402 IBAN Validator is a paid API for AI agents from opendata402.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-15).
Validates an IBAN's format, length, country code, mod-97 check digits, and bank code for common European countries, returning electronic and printed formats.
Price / call$0.001
Success—
StatusUnknown
How this service works
Validate an IBAN: country, expected length, ISO 13616 mod-97 check digits, and the bank code part for common countries (NL, BE, DE, FR, GB, ES, IT, AT, CH, LU), plus the electronic and printed formats. Use it before sending a payment or storing bank details. Pure computation: the IBAN is not stored or forwarded, and no account existence check is made.
Output
Returns a structured object indicating whether the IBAN is valid, along with the detected country, expected character length, mod-97 check digit result, extracted bank code (for supported countries: NL, BE, DE, FR, GB, ES, IT, AT, CH, LU), and the IBAN in both electronic (no spaces) and printed (grouped) formats.
Example use cases
Pre-payment IBAN sanity check
“I'm about to wire money to this account: DE89370400440532013000 — can you confirm the IBAN is valid and the check digits pass before I send the transfer?”
User-submitted bank detail verification
“A customer just entered GB29NWBK60161331926819 as their IBAN in our onboarding form — is it a valid UK IBAN with correct length and mod-97 check?”
Display-ready IBAN formatting
“I have the IBAN FR7630006000011234567890189 — validate it and give me both the electronic and printed formats so I can show it properly on the invoice.”
Technical details
Endpoint
GEThttps://opendata402.com/v1/validate/iban?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a pure, stateless IBAN validation with no side effects — no data is stored or forwarded, making it safe to use in privacy-sensitive flows. It is ideal for pre-payment validation, form input checking, or database hygiene. It covers bank code extraction for 10 major European countries and returns both electronic and printed formats in one call. If you need to verify that an account actually exists and holds funds, you need a separate live bank-lookup service.
Side effects
- Invalid IBAN format rejected at input validation (pattern mismatch)
- Unsupported country code — bank code extraction not available for all countries
- Check digit failure — IBAN fails mod-97 test, returned as invalid
- Wrong length for country — IBAN does not match the expected length for its country code
- Missing required 'iban' query parameter returns an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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