---
title: "Objects"
slug: "objects"
abstract: "Lists Sitecore Engage SDK objects (Sitecore CDP Stream API)."
---
# Objects

This section describes the objects that you pass to Engage SDK functions:

- [Settings object](https://doc.sitecore.com/cdp/en/developers/api/stream-api/sitecore-engage-sdk-reference/objects/settings-object.html "Settings object")
- [Event data object](https://doc.sitecore.com/cdp/en/developers/api/stream-api/sitecore-engage-sdk-reference/objects/event-data-object.html "Event data object")
- [Extension data object](https://doc.sitecore.com/cdp/en/developers/api/stream-api/sitecore-engage-sdk-reference/objects/extension-data-object.html "Extension data object")