Connect ChatGPT to CoSchedule to ask about your calendar from any ChatGPT chat. To check that your ChatGPT plan or workspace can add a custom MCP server, see OpenAI's Developer mode and MCP apps in ChatGPT.
Connect CoSchedule to ChatGPT
- In ChatGPT, add a custom MCP server named CoSchedule with this server URL: https://platform.coschedule.com/mcp. Use OAuth for authentication and leave the other settings as they are. OpenAI explains how in Add custom MCP server.
- Sign in to CoSchedule with the email address and password for the CoSchedule account you want to use.
- Click Sign In.
- Review the access you're granting.
- Click Authorize.
- Back in ChatGPT, ask "What calendars do I have access to?" to check the connection.
Disconnect CoSchedule from ChatGPT
Disconnect your CoSchedule account in ChatGPT. OpenAI explains how in Connecting and managing app accounts in ChatGPT.
ChatGPT loses access right away. Nothing in your calendar changes, and you can connect again at any time.
Frequently asked questions
Do I need to connect separately in Claude and ChatGPT?
Yes. Each tool keeps its own connection.
Which CoSchedule account should I sign in with?
The one whose calendars you want to ask about. ChatGPT gets that account's access and nothing else.
I signed in, and it says authorization failed.
See Fix Claude and ChatGPT connection problems.