If you are working on a software product, APIs are a powerful way to leverage the data or services of other software applications and communicate that information to your own application. APIs allow one application to talk to another, with the client requesting information and the server responding. When building an application, APIs can let your app interact dynamically with data from leading social media tools, spreadsheets and docs, CRMs, databases and more. By using Bubble's API Connector, users can connect with any API by making a request and customizing the kind of response they receive from the external app. This allows responses to be used within elements or as actions in workflows. With this knowledge, users can build fully functional apps that pull all their data from external APIs using no-code.