Multiplayer Agent for ChatGPT

com.multiplayeragent/multiplayer-agent

Make any browser game multiplayer and host it at a share link. No account needed to start.

client:ChatGPT transport:streamable-http tools:10

Install Multiplayer Agent in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.multiplayeragent.com/mcp?src=registry

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs