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IBAN Validator
x402
IBAN Validator is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.0005/call, status down (last checked 2026-09-15).
Validates an IBAN (International Bank Account Number) string for correctness and format compliance
Price / call$0.0005
Success—
StatusDown
How this service works
Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.
Output
Returns a validation result indicating whether the supplied IBAN string is valid, including likely details such as country code, check digits status, bank code, and account number components extracted from the IBAN.
Example use cases
Pre-transfer IBAN sanity check
“Before I initiate this international wire, can you verify that DE89370400440532013000 is a valid IBAN so I don't send money to a bad account?”
User-submitted bank detail validation
“A customer just entered their IBAN as FR7630006000011234567890189 in our payment form — can you confirm it's correctly formatted and valid before we save it?”
Bulk payout recipient check
“I need to validate this supplier's IBAN before adding them to our payroll system: NL91ABNA0417164300 — is it properly formed?”
Technical details
Endpoint
POSThttps://api.fastapi.online/iban-validateWhen to prefer
Choose this endpoint when you need a fast, cheap ($0.0005 per call), no-signup IBAN validation that can be called programmatically with crypto payment (x402). Prefer it for lightweight validation in payment workflows, form validation, or agent-driven finance automation where you want a dedicated IBAN check without integrating a full banking SDK.
Side effects
- IBAN string too short (below 4 characters) or too long (above 40 characters) returns a validation error
- Malformed IBAN with invalid checksum returns invalid status
- Unsupported or unrecognized country code prefix may return invalid
- Network timeout or service unavailability returns HTTP 5xx
- Missing or empty IBAN field returns a 422 unprocessable entity error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| iban | string |
Tags
x402
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