# XR API 레퍼런스

> Understand the common APIs for XR development that Unity provides.

* [XR.XRSettings](/engine/6000.0/script-reference/unity-engine-xr/xr-settings.md)
* [XR.XRDevice](/engine/6000.0/script-reference/unity-engine-xr/xr-device.md)
* [XR.InputTracking](/engine/6000.0/script-reference/unity-engine-xr/input-tracking.md)