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IBAN Validator & Decomposer
x402
IBAN Validator & Decomposer is a paid API for AI agents from iban.openverbs.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).
Validates an IBAN using mod-97 checksum and country format rules, then decomposes it into country, bank, branch, and account components.
Price / call$0.004
Success—
StatusUnknown
How this service works
Validate an IBAN (mod-97 checksum, length, country format) and decompose it into country, bank, branch and account parts.
Output
Returns a validation result indicating whether the IBAN passed the mod-97 checksum and conforms to the expected length and format for its country. On success, also returns the decomposed parts: country code (2-letter ISO), bank identifier code, branch code, and account number — extracted according to country-specific IBAN structure rules.
Example use cases
Pre-payment IBAN sanity check
“Before I wire money to this supplier, can you verify that their IBAN GB29 NWBK 6016 1331 9268 19 is valid and tell me which bank and branch it belongs to?”
Onboarding bank account validation
“A user just entered their IBAN FR76 3000 6000 0112 3456 7890 189 during signup — can you validate it and extract the country, bank, and account details so I can store them?”
Debugging a failed bank transfer
“My international transfer was rejected — can you check if the IBAN NL91 ABNA 0417 1643 00 I used is correctly formatted and show me its components?”
Technical details
Endpoint
POSThttps://iban.openverbs.com/v1/validateWhen to prefer
Use this endpoint when you need to verify an IBAN before initiating a payment, storing bank account details, or onboarding a user. It performs both structural validation (mod-97 checksum, country-specific length) and structural decomposition in a single call, making it ideal for pre-payment checks, form validation, and data enrichment pipelines that require parsed IBAN components.
Side effects
- Invalid IBAN checksum — mod-97 verification fails, returns invalid with error detail
- Incorrect length for country — IBAN does not match the expected length for the detected country code
- Unknown country prefix — the two-letter country code is not a recognized IBAN country
- Empty or missing IBAN field — request rejected with validation error
- IBAN too short or too long — input exceeds length constraints (1–64 chars)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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