static void Main(string[] args) { // Find your Account Sid and Auth Token at twilio.com/user/account string AccountSid = "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"; string AuthToken = "[AuthToken]"; var twilio = new TwilioRestClient(AccountSid, AuthToken); var message = twilio.SendMessageWithService( "MG9752274e9e519418a7406176694466fa", "+16518675309", "Phantom Menace was clearly the best of the prequel trilogy." ); Console.WriteLine(message.Sid); }