Forge by UI8 for ChatGPT
ai.ui8/forge
A visual brain for your agents: live, reusable UI fragments and skills to pull into code.
client:ChatGPT
transport:streamable-http
Install Forge by UI8 in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://forge.ui8.ai/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs