Back4app for ChatGPT

com.back4app/back4app

Deploy anything that runs in a container and get a live HTTPS address. No account needed to start.

client:ChatGPT transport:streamable-http

Install Back4app in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.back4app.com/mcp

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