This document provides an introduction to Google Apps Platform, including Google Apps Script, Application APIs, and Domain Admin APIs. It discusses what Google Apps Script is and how it can be used to automate tasks across Google products and third party services using JavaScript. It also covers Application APIs that allow developers to access Google services like Gmail, Calendar, Drive through APIs, and Domain Admin APIs that allow managing Google Apps domains. It provides examples of using various APIs and discusses authentication methods like OAuth 2.0 for accessing user data through APIs.