The SharpSpring Go SDK interacts with the API supporting attachments, embedded images, HTML and text templates, automatic encoding of special characters, SSL and TLS, and sending multiple emails with the same SMTP connection.
Our API directory now includes 37 campaign APIs. The newest is the Experian CheetahMail API. The most popular, in terms of mashups, is the LaunchBit API. We list 1 LaunchBit mashup. Below you'll find some more stats from the directory, including the entire list of campaign APIs.