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IBAN / ABA Routing / SWIFT BIC / Card Luhn Validator
x402
IBAN / ABA Routing / SWIFT BIC / Card Luhn 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 and decodes financial identifiers: IBAN checksum and country/BBAN, US ABA routing numbers, SWIFT/BIC format, and credit/debit card numbers via Luhn check with network detection.
Price / call$0.002
Success—
StatusUnknown
How this service works
Validate an IBAN checksum and decode its country and BBAN, validate a US ABA routing number, check SWIFT/BIC format, or Luhn-check a card and detect its network. Auto-detects the kind if not given.
Output
Returns whether the identifier is valid, the detected or confirmed identifier type, and decoded components: for IBAN — country code, BBAN, and checksum validity; for ABA — routing number validity and bank info; for SWIFT/BIC — format validity; for card — Luhn pass/fail and detected card network (Visa, Mastercard, Amex, etc.).
Example use cases
Validating an IBAN before a wire transfer
“Before I initiate this international wire, can you validate the IBAN GB29NWBK60161331926819 and confirm the checksum is correct along with the country and BBAN?”
Verifying a US bank routing number for ACH
“I need to verify the ABA routing number 021000021 — can you check if it's valid and tell me what bank it belongs to?”
Checking a credit card number before checkout
“Can you Luhn-check this card number 4111111111111111 and tell me which card network it belongs to?”
Technical details
Endpoint
POSThttps://api.24klabs.ai/api/iban-routing-validateWhen to prefer
Choose this endpoint when you need to validate financial identifiers (IBAN, ABA routing numbers, SWIFT/BIC codes, or card numbers) before processing payments, onboarding users, or storing financial data. It auto-detects the identifier type so you don't need to pre-classify. Prefer it over manual regex checks or separate per-type validators when you want a single unified endpoint for all major financial identifier formats.
Side effects
- Invalid or malformed identifier returns validation failure with reason
- Unrecognizable identifier type when auto-detect cannot determine kind
- Checksum mismatch for IBAN returns invalid with checksum error detail
- Card number fails Luhn check returns false with no network
- Missing required input field returns 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| value | string |
Output
Schema · Response
{
"type": "json",
"example": {
"kind": "iban",
"valid": true
}
}Tags
x402
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