A Grails Plugin for Interacting with Twilio https://www.twilio.com CONFIGURATION ------------- You will need to update your config.groovy with a section for twilio like that below twilio { account { sid = 'XXXXXXX' auth_token = 'XXXXX' } sms { enable_status_callback = true // set this to false if you DON'T want twilio to send ACK requests to your application } phones { main = '+16175551212' } proxy { host = "www" port = "80" method = "http" // or https auth { username = "foo" password = "bar" } } } Remember that the main phone will need to be your twilio Sandbox number, and that you can only send messages from that number to verified twilio numbers. This restriction doesn't exist for purchased Twilio numbers. SmsService is responsible for sending SMS messages. See the SmsController for example usage.