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IBAN Validator
x402
IBAN Validator is a paid API for AI agents from api.strale.io, paid per call via x402, $0.054001/call, status unknown (last checked 2026-10-12).
Validates an IBAN number by checking format, length, and mod-97 checksum, and extracts country code, bank identifier, and branch code.
Price / call$0.054001
Success—
StatusUnknown
How this service works
Validate an IBAN number. Checks format, length, and mod-97 checksum. Extracts country code, bank identifier, and branch code. Pure algorithmic — fast and cheap.
Output
Returns whether the IBAN is valid or invalid, along with extracted components including country code, bank identifier, and branch code derived from the parsed IBAN string.
Example use cases
Example prompt
“Can you check whether this IBAN is valid: SE3550000000054910000003 — and tell me the country code and bank identifier it contains?”
Technical details
Endpoint
GEThttps://api.strale.io/x402/iban-validate?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, cheap, purely algorithmic IBAN validation without any live bank lookup. Ideal for form validation, payment preprocessing, or data cleansing pipelines where you need to confirm format and checksum correctness and extract structured bank identifiers from raw IBAN strings.
Side effects
- Missing iban query parameter — returns error
- IBAN with invalid format or wrong length — returns validation failure with reason
- IBAN with correct format but failing mod-97 checksum — returns invalid with checksum error
- Unsupported or unknown country code — may return partial result or error
Input
{
"iban": "SE3550000000054910000003"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| ibanrequired | string | IBAN to validate (e.g. SE3550000000054910000003) |
Output
{
"bban": "50000000054910000003",
"_meta": {
"payment": {
"method": "x402",
"price_usd": 0.054000000000000006,
"settlement_id": "0x675ec1b1d4e34345928287006a171772df91bf355a7aad7a81f5eca6d52f1286"
},
"capability": "iban-validate",
"latency_ms": 1,
"provenance": {
"source": "iban-validate:algorithmic",
"fetched_at": "2026-06-16T01:24:04.101Z"
}
},
"valid": true,
"bank_code": "500",
"branch_code": null,
"check_digits": "35",
"country_code": "SE",
"expected_length": 24
}Schema · Response
{
"error": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"bank_code": {
"type": "string"
},
"branch_code": {
"type": "string"
},
"country_code": {
"type": "string"
}
}Tags
x402
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