---
title: Addon API
description: The `addon.*` API allows JavaScript addon code to obtain Scratch-related information (for example, get the current logged in user) and also use extension APIs (like sending notifications).
aliases: 
  - /docs/developing/addon-apis-reference
---

The `addon.*` API allows JavaScript addon code to obtain Scratch-related information (for example, get the current logged in user) and also use extension APIs (like sending notifications).