At Nexla, we think of APIs are belonging to one of two categories: service or data. A service API is a building block for a developer, a way to hook into another application’s functionality. It’s how developers can build apps in Slack, or add google maps to a web app. Data APIs on the other hand are a bit more limited. They allow developers to pull data from a source and then use that data however they see fit. They don’t offer any additional functionality or services. And that’s why they’re facing extinction.