Can I Use sipgate.io and the sipgate API Together? James 11 January 2016 12:21 Updated Follow Yes, the functionailties of the two APIs are complementary and can be used together. Related articles What Is the Difference Between sipgate.io and the sipgate API? What Is the sipgate API and What Features Does It Offer? How do I Authenticate with the sipgate API? Sending a Text Message (SMS) Comments 0 comments Article is closed for comments.