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IBAN Validator
x402
IBAN Validator is a paid API for AI agents from gateway.apiosk.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Validates an IBAN string, checking its format, checksum, and returning the associated country and bank name
Price / call$0.02
Success—
StatusUnknown
How this service works
Validate IBAN country format, length, mod-97 checksum and return a bundled static bank-code lookup when known.
Output
Returns a JSON object indicating whether the IBAN is valid (true/false), whether the checksum passed, the two-letter country code (e.g. 'NL'), and the resolved bank name (e.g. 'ABN AMRO').
Example use cases
Example prompt
“Can you check whether this IBAN is valid and tell me what bank and country it belongs to: NL91ABNA0417164300?”
Technical details
Endpoint
POSThttps://gateway.apiosk.com/financial-identifiers/validate/ibanWhen to prefer
Use this endpoint when you need to verify an IBAN before initiating a financial transaction, onboarding a user, or storing bank details — especially when you need both format/checksum validation AND enrichment (country and bank name) in a single call. Prefer this over manual regex checks when you need authoritative bank name resolution across multiple countries.
Side effects
- Invalid IBAN format returns valid=false with checksum_valid=false
- Unsupported country prefix may return valid=false or unknown bank_name
- Empty or missing iban field returns a 400 or error response
- Non-string input or malformed JSON body returns a parsing error
- Network timeout or upstream service unavailability returns a 5xx error
Tags
x402
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