/v{version}/bankaccounts/{bankAccountId}/payment

BODY Content.

{  
    "senderEmail":"email", // email of a mybanx registered user.  
    "counterpartyIBAN":"FR26...", // valid IBAN of the counterparty.  
    "amount":2.00, // Amount 
    "counterpartName":"EXTHAND SA",  // Counterparty name
    "currency":"EUR",  // Currency, might be EUR, USD, GBP
    "remittanceStructuredRef":null,  // Structured communication
    "remittanceUnstructured":"Rent of May 2024",  // Unstructured communication
    "dateExecution":null,  // date at which the payment must be executed by the bank.
    "end2EndId":"20240522-001",  // ID of the End to End property.
    "isInstant":true,  // Force instant payment if possible
    "redirectURL":"http://localhost:62475/payment/finalizedAPI"  // Your callback URL to retrieve the payment status once signed on the bank side.
}

Answer.

public class PaymentResponse
{
    public Guid id { get; set; }
    public string? url { get; set; }

}

id being the unique identifier of the payment in mybanx and url the URL your have to call to start executing the process.