JoinLayer for ChatGPT
app.joinlayer/mcp
Operate secure JoinLayer data pipelines through delegated OAuth.
client:ChatGPT
transport:streamable-http
Install JoinLayer in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://mcp.joinlayer.app/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs