CalendarMCP for ChatGPT

ai.calendarmcp/server

Hosted Google Calendar MCP server for AI agents. No self-hosting or Google Cloud setup.

client:ChatGPT transport:streamable-http

Install CalendarMCP in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://calendarmcp.ai/api/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs