> For the complete documentation index, see [llms.txt](https://chat-sdk.gitbook.io/android/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://chat-sdk.gitbook.io/android/getting-started.md).

# Getting Started

- [Chat SDK Quickstart](https://chat-sdk.gitbook.io/android/getting-started/chat-sdk-quickstart.md): If you want to build a messaging app, you can use the Chat SDK project as your starting point
- [Add the Chat SDK to a Firebase app](https://chat-sdk.gitbook.io/android/getting-started/getting-started.md): If you already have a Firebase app and you want to add Chat SDK
- [Add the Chat SDK to a non-Firebase app](https://chat-sdk.gitbook.io/android/getting-started/add-the-chat-sdk-to-a-non-firebase-app.md): If you have a non-Firebase app and you want to add the Chat SDK