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IBAN & BIC/SWIFT Validator
x402
IBAN & BIC/SWIFT Validator is a paid API for AI agents from api.24klabs.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Validates IBAN numbers using ISO 13616 mod-97 algorithm with per-country length rules, and validates SWIFT/BIC structure while extracting country and bank code details.
Price / call$0.002
Success—
StatusUnknown
How this service works
ISO 13616 mod-97 IBAN validation with per-country length rules, plus SWIFT/BIC structure validation and country/bank-code extraction.
Output
Returns a validation result for the IBAN (valid/invalid flag, detected country, bank code, check digit result, per-country length conformance) and for the BIC/SWIFT code (valid/invalid flag, institution code, country code, location code, branch code, any structural errors).
Example use cases
Pre-payment IBAN verification
“Before I send a wire transfer, can you validate this IBAN: DE89370400440532013000 and tell me if it's correctly formatted for Germany?”
Fintech onboarding bank detail check
“A new user submitted their bank details during signup — IBAN: FR7630006000011234567890189 and BIC: BNPAFRPPXXX. Can you verify both are valid and extract the bank and country codes?”
Accounts payable data cleansing
“I have a vendor's banking info to verify before adding them to our payment system: IBAN NL91ABNA0417164300 and SWIFT code ABNANL2A — can you confirm these are structurally valid and pull out the bank identifier?”
Technical details
Endpoint
POSThttps://api.24klabs.ai/api/v1/iban-bic-validateWhen to prefer
Use this endpoint when you need ISO 13616-compliant IBAN validation with country-specific length enforcement and combined BIC/SWIFT structure checking in a single call. Prefer it over generic regex validators when accuracy of the mod-97 checksum and per-country rules are required for financial compliance or payment processing pipelines.
Side effects
- Invalid IBAN checksum fails mod-97 test and returns invalid with reason
- IBAN length does not match country-specific rule and returns length mismatch error
- Malformed BIC with incorrect character placement returns structural validation error
- Unsupported or unrecognized country prefix returns unknown country error
- Empty or missing input field returns a 400-level validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| bic | string | |
| iban | string |
Output
Schema · Response
{
"type": "json",
"example": {
"country": "GB",
"bic_valid": true,
"iban_valid": true
}
}Tags
x402
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