ChatGPT

ChatGPT connects via OAuth — no API key needed.

1. Open Settings > Apps, then click Advanced settings at the bottom.
2. Toggle Developer mode on.

3. Click Create app. Enter a name, your connection URL, and select OAuth as the authentication method.

4. Click Save — the app appears under Drafts in Settings > Apps.

To use it in a chat, click + in the composer > More > Developer mode, then select your app.