Finance — entry 006 of 47

Bank Data

Verified Jul 2026

Bank Data validates IBANs and looks up SWIFT/BIC codes worldwide, and can also break an IBAN down into its country-specific structure or list every major bank and branch code for a given country. It's an APILayer marketplace product sharing that ecosystem's dashboard, `apikey`-header auth, and billing with siblings like Fixer and Tax Data, with a persistent free tier (100 requests/month, no card) below metered paid plans running up to 60,000 requests/month.

ibanswiftbank-lookupvalidationapilayer
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsJSONResponses can be requested as JSON.

GreatAPIs Score

Score75out of 100
Authentication15/25API key required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats9/15Single response format
Freshness20/20Verified within 6 months

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Scored 75 on greatapis.com
<a href="https://greatapis.com/api/bank-data/"><img src="https://greatapis.com/badge/bank-data.svg" alt="Scored 75 on greatapis.com"></a>

Auth quickstart

  1. Sign up with the provider to get an API key.
  2. Send it on every request as a headerAuthorization: <key>
  3. The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored

Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.