Rally Studio for ChatGPT
place.rally/studio
Make multiplayer 2D/3D browser games on Rally by chat: build, script, playtest with bots, publish.
client:ChatGPT
transport:streamable-http
Install Rally Studio in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://rally.place/api/mcpCustom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs