The reference documentation provided in this section describes the various Apps Script services and project resources.
Apps Script services
Apps Script services provide ways for your script to easily access data on
Google and external systems. These services are built into the Apps Script
environment so you don't have to import them or implement authorization
controls yourself. Services are expressed as global objects with associated
Apps Script services include:
Google services are services that let you access the data of Google Workspace apps, such as Drive, Gmail, and Sheets, and other Google apps such as Maps and Translate.
Utility services are services that aren't connected to a particular Google product. They let you do things like log information, create HTML, compress data, and more.
Some Google services are offered as an advanced service. An advanced service is an Apps Script service that lets you access Google product APIs, including but not limited to the Google Workspace product APIs. An advanced Google service is basically a thin wrapper around an API, and isn't an API itself. For more details, see Advanced Google services.
Script project resources
Script project resources provide information about your Apps Script project to help it run successfully. Project resources include information about manifest configuration, automation triggers, and quotas.
You only need to refer to add-on resources if you're building an add-on. View add-on resources in the add-on reference documentation.