You can get even more out of Calendar by connecting it with other products. Some products have to be connected manually, but some are built into Calendar already. Check out the Integrations page for a full list.
Planning Center has an API available for developers to interact with your account. See our page on GitHub for more information.
The Planning Center API can interact with your organization's data inside Planning Center.
Currently, there is an API for Calendar, Check-Ins, Giving, Groups, People, and Services, and we are working toward adding endpoints for some of our other products.