This document provides an introduction to xAPI (Experience API) for instructional designers. It defines xAPI as a specification for sending, storing, and retrieving data about learning experiences. The document discusses how xAPI works and how it is an improvement over SCORM. It provides examples of xAPI statements and describes how learning data can be used. It also offers guidance on getting started with xAPI, including ways to send data and where to store it in a learning record store. The document aims to help instructional designers understand and implement xAPI for tracking learning activities.