All in One api.all_in_one is the function used to login or register using just a token ( it needs the program to be initialized first ) : The token that you want to use (Optional) The token's hwid Code-Example class Program { public static api auth_instance = new api("program version", "program key", "api key"); static void Main(string[] args) { auth_instance.init(); if(auth_instance.all_in_one("token")) Console.WriteLine("success"); } }