Meta XR Mixed Reality Utility Kit (MR Utility Kit, MRUK, com.meta.xr.mrutilitykit)

The Meta XR Mixed Reality Utility Kit (MR Utility Kit, MRUK) is a Unity package that provides high-level tools on top of the Scene API for building scene-aware Mixed Reality (MR) experiences. It is designed to be used in conjunction with the Meta XR Core SDK. It handles scene data loading and querying, spawning prefabs on real-world surfaces, world locking to prevent anchor drift, environment raycasting for instant placement without scanning, passthrough camera access, NavMesh generation from room geometry, and trackable detection (keyboards, QR codes).

Package: com.meta.xr.mrutilitykit

Finding the SDK Source

The package com.meta.xr.mrutilitykit may be located in different places depending on the project setup:

• Library/PackageCache/com.meta.xr.mrutilitykit@<hash>/ (cached from registry)
• Packages/com.meta.xr.mrutilitykit/ (local package reference)
• A custom on-disk path (embedded or local folder)

Before searching for SDK source, first locate the package root by searching for a known file by filename pattern:

**/com.meta.xr.mrutilitykit*/Core/Scripts/MRUK.cs

Then use the resolved parent path for all subsequent search operations.