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Spain IBAN Validator
x402
Spain IBAN Validator is a paid API for AI agents from spain-agent-toolkit.spain-agent-toolkit.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-29).
Validates a Spanish IBAN, returning parse details including bank code, branch code, check digit status, and formatted representation
Price / call$0.005
Success—
StatusUnknown
How this service works
Pay-per-call Spain utilities for AI agents over x402 (USDC). No accounts, no API keys. Public open data and offline computation only; nothing is stored.
Output
Returns a JSON object indicating whether the IBAN is valid (boolean), the detected country code (e.g. 'ES'), a prettily formatted IBAN string with spaces, and Spain-specific details including the bank code (4 digits), branch code (4 digits), and whether the national check digits pass.
Example use cases
Pre-transfer IBAN sanity check
“Before I wire money to this Spanish supplier, can you validate their IBAN ES80 2310 0001 1800 0001 2345 and confirm it's correctly formatted with the right check digits?”
Onboarding bank account verification
“A new Spanish customer just entered their IBAN ES91 2100 0418 4502 0005 1332 on our platform — can you verify it's valid and pull out the bank code and branch code for our records?”
Batch payment file audit
“I have a payment to process for ES79 2100 0813 6101 2345 6789 — please check if that Spanish IBAN is valid before we submit the file.”
Technical details
Endpoint
GEThttps://spain-agent-toolkit.spain-agent-toolkit.workers.dev/v1/iban/validate?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need offline, stateless validation of a Spanish IBAN without storing data or creating an account. It is ideal for pre-payment sanity checks, onboarding flows, or audit pipelines that specifically deal with Spanish (ES) bank accounts. It does not require an API key and charges a flat $0.005 USDC per call via x402, making it suitable for low-volume ad-hoc agent calls. Prefer alternatives if you need to validate IBANs from many countries simultaneously or require real-time bank account status lookups.
Side effects
- Invalid or malformed IBAN returns valid:false with no ES-specific breakdown
- Non-Spanish IBAN may not return the ES-specific bank/branch fields
- Missing or empty 'iban' query parameter causes a 400-level error
- Spaces or formatting variants in the IBAN should be handled by the API but extreme corruption may cause parse failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"es": {
"bankCode": "2100",
"branchCode": "0418",
"nationalCheckOk": true
},
"valid": true,
"country": "ES",
"formatted": "ES91 2100 0418 4502 0005 1332"
}
}Tags
x402
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