So you are building your awesome sites and apps that you want it to be accessible on all smartphone, tablet and desktop devices. Definitely you need a proper backend and application programming interface (API), among others to allow these software components to interact with your core application brain. This session will try to discuss how you could develop your API with the magical Ruby on Rails, run it with mystical Unicorn and Nginx, and managed your deployment via Capistrano. Yes people, we're living in a world full of APIs.