Chat33 for ChatGPT

io.chat33/chat33

Publish to 8 social networks, answer Instagram and Facebook DMs, build comment-to-DM flows.

client:ChatGPT transport:streamable-http

Install Chat33 in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://chat33.io/api/mcp/mcp

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