var rsaKeyPair = new RSACng(2048); // Generate a key pair or load one
var useSandbox = true;

var bunq = new BunqApiClient(rsaKeyPair, useSandbox);

// Link your API key to this IP address
var installation = await bunq.Installations.CreateAsync(rsaKeyPair);

var deviceServer = await bunq.DeviceServers.CreateAsync("your-api-key", "My First DeviceServer", installation.Token);
await bunq.Sessions.StartAsync("your-api-key", installation.Token);

// Get all bank accounts for the User
var accounts = (await bunq.MonetaryAccountBanks.GetAllAsync()).ToArray();

// Pay 25 euros from the first account to the second
var paymentId = await accounts[0].CreatePaymentAsync(accounts[1], new Amount(Currency.EUR, 25m), "My First Payment");

var rsaKeyPair = new RSACng(CngKey.Import(new byte[0], CngKeyBlobFormat.GenericPrivateBlob)); // Load your private key here
var serverPublicKey = new RSACng(CngKey.Import(new byte[0], CngKeyBlobFormat.GenericPublicBlob)); // Load the server public key

var installationToken = new Token(File.ReadAllText("the-installation-token.txt")); // Load your installation token

var useSandbox = true;

var bunq = new BunqApiClient(rsaKeyPair, serverPublicKey, useSandbox);
await bunq.Sessions.StartAsync("your-api-key", installationToken);

// ... Use your session