IBAN Validator

IBAN (International Bank Account Number) · Issuer: ISO 13616 / SWIFT. International payments, SEPA, and IBAN-using LatAm countries (Brazil, Costa Rica, Dominican Republic, El Salvador, Guatemala).

Format

Country code (2 letters), 2 check digits and up to 30 account characters; length depends on the country (e.g. ES 24, DE 22, BR 29).

Check-digit algorithm

1. Move the first 4 characters to the end.
2. Replace letters with numbers (A=10 … Z=35).
3. The resulting number mod 97 must equal 1.
4. Also check the country length from the SWIFT registry.

Use cases

International payments, SEPA, and IBAN-using LatAm countries (Brazil, Costa Rica, Dominican Republic, El Salvador, Guatemala).

Code examples

# curl (RapidAPI)
curl -X POST "https://validalatam.p.rapidapi.com/validate" -H "Content-Type: application/json" \
  -H "X-RapidAPI-Key: $RAPIDAPI_KEY" -H "X-RapidAPI-Host: validalatam.p.rapidapi.com" \
  -d '{"type":"IBAN","value":"DE72815492680220564834"}'

# Python
import requests
r = requests.post("https://validalatam.p.rapidapi.com/validate", json={"type": "IBAN", "value": "DE72815492680220564834"},
                 headers={"X-RapidAPI-Key": KEY, "X-RapidAPI-Host": "validalatam.p.rapidapi.com"})
print(r.json()["valid"], r.json()["formatted"])

// JavaScript (fetch)
const r = await fetch("https://validalatam.p.rapidapi.com/validate", { method: "POST",
  headers: { "Content-Type": "application/json", "X-RapidAPI-Key": KEY, "X-RapidAPI-Host": "validalatam.p.rapidapi.com" },
  body: JSON.stringify({ type: "IBAN", value: "DE72815492680220564834" }) });
const { valid, formatted, error } = await r.json();

# Response
{
  "valid": true,
  "type": "IBAN",
  "country": "XX",
  "input": "DE72815492680220564834",
  "normalized": "DE72815492680220564834",
  "formatted": "DE72 8154 9268 0220 5648 34"
}

API plans on RapidAPI

Free plan to get started; paid plans for production volume and batch validation (up to 1000 per request).

See plans on RapidAPI →

FAQ

Other validators