Slack apps can utilise a wide range of APIs and app features to accomplish their tasks. This is a collection of reference guides for those features, providing a perusable list of parameters for POSTing.

Reference guides are for the experienced, and those who want to jump in at the very deep end. We've sprinkled in some links to usage guides for each feature, should you want to brush up on the basics.

App surfaces

Block Kit

Interaction payloads

Messaging

Web APIs

Events API