SMS Messaging API

Current version: 2.0.3

The SMS API provides full 2-way SMS messaging access, allowing you to send and receive SMS messages from your own application using Sign-Up.to’s SMS gateways. You can send broadcast SMS messages, receive SMS messages using our UK shortcode or internationally accessible MSISDN number and retrieve message delivery information.

Download the PDF version of the SMS API documentation

Before you begin, please make sure that you have followed the general API setup instructions.