ChatGPT installs custom MCP servers as apps. This needs Developer mode, which ChatGPT requires for any custom (non-verified) server. Once connected, the assistant can query your Zeydoo data on your behalf. The Free plan is supported, with a limit of one app at a time.
In ChatGPT, click your profile in the bottom-left corner, then Settings.
Switch to the Apps tab and open Advanced settings.
Toggle Developer mode on. This is required for installing custom MCP servers — ChatGPT will warn about elevated risk.
Click Create app in the top-right corner.
Fill in the new-app form:
Zeydoo MCPServer URL selected, paste https://mcp.zeydoo.comOAuthClick Create.
On the new app page, click Connect and sign in with your Zeydoo account in the popup. The Zeydoo tools are then available in your chats.