Ready Player Me is a cross-game avatar platform that allows users to create a consistent avatar for use in various virtual worlds and games. While not exclusively AI-driven, it uses AI for some aspects of avatar creation and customization, such as generating avatars from selfies. It's focused on interoperability and ease of use. For easy integration, you can use the SDKs (Unity, Unreal, React) or directly work with the APIs and/or iFrame Avatar Creator integration.