Connect Cal.com to ChatGPT

What you need:

• ChatGPT Business plan
• A Cal.com account

Built from each app's own docs.

Plan: ChatGPT Business, Enterprise or Edu, on the web, set up by an admin or owner. Pro can add servers that only read.

1. In ChatGPT, open Plugins. Choose +, then Add custom MCP server.
2. Name it Cal.com. Under Connection, enter https://mcp.cal.com/mcp
3. Pick OAuth. Sign in to Cal.com and approve access.
4. Tick I understand and want to continue. Select Create as a plugin.
5. In a new chat, type @ and pick Cal.com.

Test it: Ask: list my Cal.com bookings for this week. Don't change anything.

What it can do: Read and make bookings, reschedule, cancel, and check your free time.

What it can't do: It can cancel and change bookings, so keep it on ask first. Your booking link works on its own, with no AI.

Cal.com documents Claude Desktop, Cursor, VS Code and Grok Bot, not ChatGPT.

From cal.com and help.openai.com. Last checked Oct 28, 2026.

Never paste an API key into a chat. Use the app's connector screen.

Cal.com with another AI: Claude · Claude Code · Grok Bot · Gemini · Copilot

All tools for ChatGPT · Every AI and tool