Subframe for ChatGPT

com.subframe/subframe

Design and edit UI in Subframe and open the design canvas in the chat

client:ChatGPT transport:streamable-http

Install Subframe in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.subframe.com/mcp

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