hitbtc_streaming.cs

using System;
using WebSocketSharp;

// Install WebSocketSharp https://github.com/sta/websocket-sharp (e.g. via NuGet)
namespace Hitbtc
{
    public class Program
    {
        public static void Main(string[] args)
        {
            using (var ws = new WebSocket("ws://api.hitbtc.com"))
            {
                ws.OnMessage += (sender, e) =>
                  Console.WriteLine(e.Data);

                ws.Connect();
                Console.ReadKey(true);
            }
        }
    }
}