curl --request POST \
  --url https://api.example.com/open-banking/v1/funds-confirmations \
  --header 'Content-Type: application/json' \
  --header 'X-Request-ID: <x-request-id>' \
  --data '
{
  "account": {
    "iban": "DE40100100103307118608",
    "bban": "1234567890",
    "pan": "5409050000000000",
    "maskedPan": "123456xxxxxx1234",
    "msisdn": "+49170123456",
    "currency": "EUR"
  },
  "instructedAmount": {
    "currency": "EUR",
    "amount": "123.50"
  },
  "cardNumber": "12345678901234",
  "payee": "Merchant ABC"
}
'

{
  "fundsAvailable": true
}