Do you want to show or add events programmatically through a REST API? Just integrate the Yard API into any website or app. You can then access events which are contained in Yard. You can also manage your own events through the API. Simply become a Calendar Partner, link to your own calendar on Yard, and you're all set.
The Yard API is in beta mode and not yet publicly available. Subscribe to Yard news to get informed when we launch it.