This is the official response of the VRChat Team (from Tupper more specifically) on the usage of the VRChat API. Use of the API using applications other than the approved methods (website, VRChat ...
Ready Play Me, the free avatar maker from Wolf3D, now supports exporting avatars to VRChat, making it quick and easy to get a customizable avatar into one of the most popular social VR applications.
VRChat MCP OSC provides a bridge between AI assistants and VRChat using the Model Context Protocol (MCP), enabling AI-driven avatar control and interactions in virtual reality environments.