# Calendar MCP servers

MCP servers that let an agent read and schedule events in Google Calendar, Outlook, Apple Calendar and others.

## Before you choose

Calendar servers sign in with your account (OAuth, R2) or run locally against a calendar app on your machine.

Creating an event can send invitations to other people, so check which tools write before an agent schedules on your behalf.

## Servers (20)

What search for "calendar" returns, without listings scored poor, published under many names from one repository, or with nothing to connect to.

- [Multi Calendar](https://protogrid.dev/servers/co.lumman/calendar.md) `co.lumman/calendar`: class R2, quality 83 (new), trust 96. Outlook.com, Microsoft 365, Google calendars: free time, events, invitations, booking pages, polls.
- [io.github.deciduus/calendar-mcp](https://protogrid.dev/servers/io.github.deciduus/calendar-mcp.md) `io.github.deciduus/calendar-mcp`: class L0, quality – (not scored), trust 87. Google Calendar for LLM agents: find, create, update, move, delete events; free/busy; scheduling.
- [Calendar.app](https://protogrid.dev/servers/io.github.p-l-ta/calendar-mcp.md) `io.github.p-l-ta/calendar-mcp`: class L0, quality – (not scored), trust 81. List, search, and manage calendar events via macOS Calendar.app across all configured accounts.
- [cn.pianam.mcp/calendar-mcp](https://protogrid.dev/servers/cn.pianam.mcp/calendar-mcp.md) `cn.pianam.mcp/calendar-mcp`: class unknown, quality – (not scored), trust 60. China holidays and lunar calendar lookup, solar-to-lunar conversion and yearly schedule.
- [Nolizi Calendar](https://protogrid.dev/servers/com.nolizi.calendar/calendar.md) `com.nolizi.calendar/calendar`: class R1, quality 88 (good), trust 83. Free scheduling your agent can book through: live availability, booking, verification, cancel.
- [AllMyMeetings](https://protogrid.dev/servers/com.allmymeetings/calendar.md) `com.allmymeetings/calendar`: class R1, quality – (not scored), trust 82. Sync Google, Outlook, and iCloud calendars and manage events, availability, and booking links.
- [Calendar Agent by Nova (CIVAI)](https://protogrid.dev/servers/co.civai.nova/calendar-agent.md) `co.civai.nova/calendar-agent`: class R0, quality 79 (good), trust 83. I do everything related to calendar scheduling
- [Holiday Calendar](https://protogrid.dev/servers/com.modernmustardseed/holiday-calendar.md) `com.modernmustardseed/holiday-calendar`: class R0, quality 96 (strong), trust 100. U.S. federal holidays with observed dates and business-day math. Example from an open-source kit.
- [YouSpot](https://protogrid.dev/servers/com.youspot/youspot.md) `com.youspot/youspot`: class R0, quality 60 (needs work), trust 93. Query one person's second brain: contacts, companies, notes, files and connected accounts.
- [Consistency Calendar](https://protogrid.dev/servers/io.github.olliejgooding/consistency-calendar.md) `io.github.olliejgooding/consistency-calendar`: class R0, quality 96 (strong), trust 91. Turn any goal with a deadline into a private, gamified, evidence-based execution calendar.
- [Apple Calendar](https://protogrid.dev/servers/io.github.redpop/apple-calendar-mcp.md) `io.github.redpop/apple-calendar-mcp`: class L0, quality – (not scored), trust 87. Read and create Apple Calendar events on macOS, and find free time across calendars.
- [Boston Calendar](https://protogrid.dev/servers/io.github.pipeworx-io/boston-calendar.md) `io.github.pipeworx-io/boston-calendar`: class R0, quality – (not scored), trust 96. The Boston Calendar MCP.
- [io.github.mmedum/google-calendar-mcp](https://protogrid.dev/servers/io.github.mmedum/google-calendar-mcp.md) `io.github.mmedum/google-calendar-mcp`: class L0, quality – (not scored), trust 96. Google Calendar over MCP: calendars, events, recurrence and availability.
- [Timothe's Growth Calendar](https://protogrid.dev/servers/ai.timothe/growth-calendar.md) `ai.timothe/growth-calendar`: class R2, quality 83 (good), trust 92. Plan, schedule and generate SEO articles on a content calendar, from your agent.
- [Google Calendar MCP](https://protogrid.dev/servers/io.github.A1-x-Tech/mcp-google-calendar.md) `io.github.A1-x-Tech/mcp-google-calendar`: class L0, quality – (not scored), trust 96. MCP server for the Google Calendar API: events, recurrence, invitations, availability, calendars.
- [Custody Calendar Maker](https://protogrid.dev/servers/dev.workers.ekelund-apps.custody-calendar/custody-calendar-maker.md) `dev.workers.ekelund-apps.custody-calendar/custody-calendar-maker`: class R0, quality 86 (good), trust 82. Custody schedules (2-2-3, 2-2-5-5, week on/off) as a year calendar both co-parents can subscribe to
- [Google_calendar](https://protogrid.dev/servers/io.github.pipeworx-io/google_calendar.md) `io.github.pipeworx-io/google_calendar`: class R0, quality – (not scored), trust 96. Google Calendar MCP Pack
- [Mac Calendar MCP](https://protogrid.dev/servers/io.github.wagamama/mac-calendar-mcp.md) `io.github.wagamama/mac-calendar-mcp`: class L0, quality – (not scored), trust 81. Read-only Mac Calendar MCP server with indexed archive search.
- [Google Calendar](https://protogrid.dev/servers/io.github.domdomegg/google-cal-mcp.md) `io.github.domdomegg/google-cal-mcp`: class L0, quality – (not scored), trust 86. Allow AI systems to list, create, update, and manage Google Calendar events.
- [CalDAV calendars](https://protogrid.dev/servers/io.github.ni-c/caldav-mcp.md) `io.github.ni-c/caldav-mcp`: class L0, quality – (not scored), trust 94. Read and write CalDAV calendars: events, tasks and journal entries over the open standard

All use cases: https://protogrid.dev/mcp.md