R3 is a browser platform for interactive 3D: scenes, physics, sound and music, built from components, with Blender .blend import.
This connector lets your AI work on your R3 account. What your AI can build: 3D scenes with materials, lights, fog, terrain and HDR environment lighting; tileable texture sets (colour, normal and roughness maps) from procedural recipes such as gravel, sand, concrete and bricks; physics with rigid bodies, colliders, joints and drivable vehicles; keyboard, mouse and touch controls; positional sound and music from beats, drum grids and patterns, with visuals that move on every beat; camera moves such as a chase camera; a help overlay that lists the controls.
https://mcp.r3js.org/mcpNone in the store listings. The server needs sign-in, so we could not check it