Overview
Bank Data API lets you instantly validate IBAN and SWIFT/BIC numbers to make sure bank account details are correct before processing a payment. It supports banks worldwide and returns helpful details like bank name, country, and BIC code. This is a great tool for anyone building payment forms or financial apps that need to verify account information upfront.
Beginner Tip
Always validate IBANs on your server side — never trust client-submitted bank data alone. Check that the returned "valid" field is true before proceeding with any transaction.
Available Data
The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.
Example Response
Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.
{
"input": "[email protected]",
"is_valid": true,
"format_valid": true,
"details": "Input passes all validation checks"
} Field Reference
valid Whether the IBAN is structurally valid and passes checksum verification. iban The IBAN number that was validated, returned in standardized format. bank_data.name The name of the bank associated with the IBAN. bank_data.bic The BIC/SWIFT code of the bank. bank_data.country The country where the bank is registered (ISO 3166-1 alpha-2 code). Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://apilayer.com/marketplace/bank_data-api";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
headers: {
"X-API-Key": "YOUR_API_KEY"
}
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.
Metadata Score Breakdown
Estimated from metadata — endpoint not independently tested
Metadata estimate · endpoint not independently tested
Technical Specifications
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