const url = 'https://api.gnosispay.com/api/v1/ibans/details';
const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}, body: undefined};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}

{
  "data": {
    "iban": "DE44500105175407324931",
    "bic": "GENODEM1GLS",
    "ibanStatus": "PENDING",
    "address": "0x71C7656EC7ab88b098defB751B7401B5f6d8976F"
  }
}