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IBAN Validator
x402
IBAN Validator is a paid API for AI agents from conclavex402.pythonanywhere.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-16).
Validates an IBAN by checking country code, length, and ISO 13616 mod-97 checksum, returning validity, country, and check digits.
Price / call$0.005
Success—
StatusUnknown
How this service works
Validate an IBAN (international bank account number) — check the country, length and ISO 13616 mod-97 checksum; returns validity, country and check digits.
Output
Returns a JSON object with a boolean 'valid' field indicating overall validity, a 'country' field with the ISO 3166-1 alpha-2 country code extracted from the IBAN, the expected 'iban_length' for that country, and the 'check_digits' parsed from the IBAN.
Example use cases
Pre-payment IBAN sanity check
“Before I wire €2,000 to this account, can you validate the IBAN GB29NWBK60161331926819 — is the checksum correct and does it look like a real UK account?”
Fintech onboarding form validation
“A new user just entered FR7614508590000000000000000000000001 as their bank account number during signup — can you check if it's a valid French IBAN before we proceed?”
Batch payment file review
“I'm about to process a supplier payment and want to double-check their IBAN: NL91ABNA0417164300 — is it valid, and which country is it registered in?”
Technical details
Endpoint
POSThttps://conclavex402.pythonanywhere.com/u/iban?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, fast, ISO 13616-compliant IBAN checksum and country/length validation without a full banking API integration. Ideal for pre-payment verification, form validation, or any workflow where you need to confirm an IBAN is structurally correct before submitting it to a bank or payment processor.
Side effects
- Invalid or malformed IBAN input returns valid=false with no country or check digit details
- Missing or empty IBAN body field may return a 400-level error
- IBANs from unsupported or unrecognized countries may fail length validation
- Network or server errors on pythonanywhere.com may result in 5xx responses
- Whitespace or formatting characters in the IBAN string may cause validation failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"valid": true,
"country": "DE",
"iban_length": 22,
"check_digits": "89"
}
}Tags
x402
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