> For the complete documentation index, see [llms.txt](https://docs.echo3d.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.echo3d.com/unreal/using-the-sdk.md).

# Using the SDK

Getting started with the echo3D Unreal SDK.

## SDK Contents

<figure><img src="https://3757500311-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M41BcmqhdFQ3r89wcIR%2Fuploads%2FIbEfE7L8ebECj5RZwLBQ%2Fsdk_contents.png?alt=media&amp;token=357b633d-0320-43e6-b5d5-3a424470d1a4" alt="Screenshot of unzipped sdk contents"><figcaption></figcaption></figure>

The unzipped SDK contains two items:

* **`echo3D`** : Plugin source files
* **`user_readme.md`**: Readme file containing step by step instructions to install and use the SDK via either C++ or Blueprints

Open the `user_readme.md` file and follow the enclosed instructions to install the plugin into your project and stream assets via C++ and Blueprints.