The Drip PHP SDK by J. Aaron Eaton allows to interact with the API via OAuth. JSON callbacks are included inthe Drip file. Additional features include services for campaigns and subscribers.
Do you know if your emails reach your users' inbox? You may see clicks and opens, but were all your emails seen? SparkPost offers this certainty to developers for free or low cost. SparkPost sends 25% of the world's legitimate emails. They make solving email delivery as easy as making an API call.
Heroku’s new GitHub integration allows automatic deployment of GitHub pushes to linked Heroku apps, as demonstrated by James Ward’s instructional screencast.