Calendar & Scheduling MCP Servers — Google Calendar, Outlook, Apple, Cal.com, and 35+ Servers

At a glance: 35+ calendar and scheduling MCP servers across 7 subcategories. Google Calendar leads implementations, Microsoft ships an official server, Apple Calendar via apple-mcp (3,000 stars). Rating: 4/5. Google Calendar google-calendar-mcp — 1,000 stars The standout. Multi-account with cross-account conflict detection. 12 tools covering the full calendar lifecycle. Advanced features: recurring event modification, natural language scheduling, intelligent event import from images/PDFs/web links. Screenshot a conference flyer → calendar events. v2.6.1 (March 2026), actively maintained. Other Google Calendar servers calendar-mcp (25 stars) — mutual meeting slot detection, daily busyness analysis mcp-google-calendar (9 stars) — auto timezone detection, conflict checking 6+ total implementations reflecting Google Calendar's API accessibility Microsoft Outlook / 365 Microsoft 365 CalendarTools (Official) Official remote MCP server from Microsoft — part of their 2,800-star MCP mono-repo.