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IBAN Validation (ISO 13616 + Mod-97)
x402
IBAN Validation (ISO 13616 + Mod-97) is a paid API for AI agents from x402-seller-202595743428.europe-west1.run.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Validates an IBAN string against ISO 13616 structure and mod-97 checksum, returning validity, country, BBAN, and failure reason for 70+ countries.
Price / call$0.003
Success—
StatusUnknown
How this service works
IBAN validation (ISO 13616 + mod-97 checksum, 70+ countries). POST {iban}. Returns {valid, country, bban?, reason?}.
Output
Returns a JSON object with: `valid` (boolean indicating if the IBAN passes ISO 13616 structure and mod-97 checksum), `country` (2-letter ISO country code extracted from the IBAN), `bban` (the Basic Bank Account Number portion, when valid), and `reason` (a human-readable explanation of why validation failed, when invalid).
Example use cases
Pre-payment IBAN verification
“Before I wire money to this supplier, can you verify the IBAN FR7630006000011234567890189 is valid and confirm what country it's registered in?”
Invoice data quality check
“I've got a batch of supplier IBANs from our finance team — can you validate this one first: GB29NWBK60161331926819 — is it correctly formatted and does the mod-97 checksum pass?”
Onboarding bank account validation
“A new customer entered their IBAN as NL91ABNA0417164300 during signup — can you confirm it's a legitimate IBAN and tell me the BBAN component?”
Technical details
Endpoint
GEThttps://x402-seller-202595743428.europe-west1.run.app/ibanWhen to prefer
Choose this endpoint when you need a fast, low-cost, authoritative IBAN checksum and structure validation covering 70+ countries without requiring a full KYC/KYB pipeline. It is ideal for pre-payment verification, form validation, invoice processing, or onboarding flows where you only need to confirm an IBAN is well-formed. For full EU business due diligence including IBAN-to-company resolution, use the sibling KYB endpoint instead.
Side effects
- Invalid IBAN format returns valid:false with a reason string explaining the structural error
- Incorrect mod-97 checksum returns valid:false with checksum failure reason
- Unsupported or unrecognized country code may return valid:false
- Missing or empty iban parameter may return an error response
- IBANs with unexpected special characters may fail parsing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| iban | string | IBAN, spaces allowed |
Tags
x402
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