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Connecting to ChatGPT

You need a paid plan (Plus, Pro, Business, Enterprise/Edu) and the chatgpt.com website in a browser.

1. Open Settings → Apps → Advanced settings and switch on Developer mode.
2. Press Create app. Name — “Fabulotheca”, MCP server URL — your personal link from the account, Authentication — No authentication, tick “I trust this application” and press Create.
3. In a new chat press + → More → Developer mode and choose “Fabulotheca”.

Check: “Search Fabulotheca for ATU 510A”, then “Open 3 and 5”.

OpenAI sometimes renames menu items — look for “Developer mode” and “Create app”. It works in a normal chat; “Agent” mode does not use such apps. On the Business plan, developer mode is switched on by the workspace administrator.

*The steps follow the official documentation.