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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 codes with country and bank-code extraction.
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 structured response indicating whether the IBAN or BIC is valid, along with extracted components such as country code, bank code, branch code, account number segment, and any specific error messages describing why validation failed (e.g. wrong length for country, failed mod-97 checksum, invalid BIC structure).
Example use cases
Pre-payment IBAN verification
“Before I send this wire transfer, can you validate the IBAN DE89370400440532013000 and confirm the checksum and country length rules pass?”
BIC code extraction for routing
“I have the SWIFT code DEUTDEDBFRA — can you validate it and pull out the bank code, country code, and branch identifier?”
User onboarding bank account check
“A new user submitted their IBAN FR7630006000011234567890189 during signup — validate it against the French per-country rules and tell me if it's legitimate.”
Technical details
Endpoint
POSThttps://api.24klabs.ai/api/iban-bic-validateWhen to prefer
Use this endpoint when you need to verify IBAN or BIC/SWIFT codes before initiating international payments, onboarding bank accounts, or processing financial data. Prefer this over a simple regex check when you need ISO 13616 mod-97 checksum validation, per-country length rules enforcement, and structured extraction of bank/country codes from IBANs or BICs in a single call.
Side effects
- Invalid IBAN checksum (mod-97 fails) — returns validation false with checksum error detail
- IBAN length mismatch for the given country code — returns country-specific length rule violation
- Malformed BIC/SWIFT code structure — returns structural error indicating which component is invalid
- Unsupported or unknown country code in IBAN — returns unrecognized country error
- Empty or missing input — returns 400-level error or validation false with missing input message
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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