Calendar MCP servers

Which calendar MCP servers actually answer?

Of 267 servers in the official MCP registry that mention Calendar, we checked 137 remote endpoints on 2026-10-04: 62 answered the MCP handshake, 63 answered but asked for sign-in or payment first, and 12 did not complete it. 118 run on your own machine and cannot be checked from outside.

What this does not tell you: whether a server is safe, or whether its tools do what they say. An answer to the handshake proves the endpoint is up, nothing more.

Ranked by our checks and repository activity, not by votes. How we check.

1. Agent-Native Calendar

   io.github.BuilderIO/agent-native-calendar

   Agent-Native Google Calendar - manage events, sync, and public booking

   Answers, but requires sign-in before the handshake★ 7,047

2. outlook-calendar

   com.mintmcp/outlook-calendar

   A MCP server that works with Outlook Calendar to manage event listing, reading, and updates.

   Answers, but requires sign-in before the handshake★ 9

3. Content Calendar Agent by Nova (CIVAI)

   co.civai.nova/content-calendar-agent

   I create markdown content calendars and export them as PDFs via PDF Generator MCP

   Answers the MCP handshake and lists its tools

4. Calendar Agent by Nova (CIVAI)

   co.civai.nova/calendar-agent

   I do everything related to calendar scheduling

   Answers the MCP handshake and lists its tools

5. Consistency Calendar

   io.github.olliejgooding/consistency-calendar

   Turn any goal with a deadline into a private, gamified, evidence-based execution calendar.

   Answers the MCP handshake and lists its tools

6. HinduCalendar — panchang, festivals & muhurta

   app.hinducalendar/hinducalendar

   Daily panchang, festivals, muhurta and birth details, identical to the HinduCalendar Android app.

   Answers the MCP handshake and lists its tools

7. vietnamese-calendar

   com.am-lich/vietnamese-calendar

   Vietnamese Lunar Calendar for date and calendar conversion, and cultural insights.

   Answers the MCP handshake and lists its tools

8. IPOGrid IPO Calendar & Filing Research

   com.ipogrid/ipogrid

   IPO calendar, SEC filings, deal terms, and IPO news research via the IPOGrid MCP server.

   Answers the MCP handshake and lists its tools

9. google-calendar

   com.pulsemcp/google-calendar

   MCP server for Google Calendar integration with service account support and domain-wide delegation.

   runs locally★ 81

10. calendar-ics-reader-events-freebusy-conflicts

    io.github.theluckystrike/calendar-ics-reader-events-freebusy-conflicts

    Read the .ics your calendar exports: events in a window, free-busy, double bookings, export.

    Answers, but requires sign-in before the handshake★ 1

11. macOS Calendar and Reminders

    io.github.PsychQuant/che-ical-mcp

    macOS Calendar and Reminders MCP server (29 tools). Native Swift EventKit, iCloud/Google/Exchange.

    runs locally★ 38

12. macOS Calendar & Reminders

    io.github.kiki830621/che-ical-mcp

    macOS Calendar & Reminders MCP server (24 tools). Native Swift EventKit, iCloud/Google/Exchange.

    runs locally★ 38

13. calendar-mcp

    io.github.deciduus/calendar-mcp

    Google Calendar for LLM agents: find, create, update, move, delete events; free/busy; scheduling.

    runs locally★ 26

14. Economic Calendar & News Risk

    io.github.tylerscomic-lab/econ-calendar-mcp

    FOMC/NFP/CPI economic calendar plus prop-firm news-restriction window checks for futures traders.

    Answers, but requires sign-in before the handshake

15. UFCalendar Fight API — MMA MCP server

    com.ufcalendar/fight-api

    Fight API MCP: UFC, PFL, BKFC, RIZIN, OKTAGON events, results, stats, rankings, judges scorecards.

    Answers the MCP handshake and lists its tools

16. Nolizi Calendar

    com.nolizi.calendar/calendar

    Free scheduling your agent can book through: live availability, booking, verification, cancel.

    Answers the MCP handshake and lists its tools

17. Race Calendar F1

    app.racecalendar/f1

    Anonymous read-only Formula 1 tools, resources, prompts, completion, and interactive dashboard.

    Answers the MCP handshake and lists its tools

18. Timothe's Growth Calendar

    ai.timothe/growth-calendar

    Plan, schedule and generate SEO articles on a content calendar, from your agent.

    Answers, but requires sign-in before the handshake

19. calendar-bridge

    io.github.IsaiahDupree/calendar-bridge

    Connects ChatGPT to your Apple Calendar via a local Mac agent + Vercel relay

    Answers, but requires sign-in before the handshake

20. PlugRail Japanese Calendar

    dev.plugrail/jp-calendar

    Japanese holiday and business-day calculations using official Japan Cabinet Office data.

    Answers the MCP handshake and lists its tools

21. CalendarMCP

    ai.calendarmcp/server

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

    Answers, but requires sign-in before the handshake

22. Apple Calendar

    io.github.JonathanRReed/apple-calendar-mcp

    List, create, update, and delete events in Apple Calendar on macOS.

    runs locally★ 20

23. icloud-calendar-mcp

    org.onekash/icloud-calendar-mcp

    MCP server for iCloud (Apple) Calendar access via CalDAV

    runs locally★ 20

24. mu

    mu.micro/mu

    News, web search, mail, markets, weather, places, files, calendar, contacts. 67 tools, one endpoint.

    Answers the MCP handshake and lists its tools★ 436

25. Temporal Cortex Calendar MCP

    io.github.temporal-cortex/mcp

    18 deterministic calendar tools: contact resolution, temporal context, availability, booking

    runs locally★ 13

26. Microsoft 365 Calendar

    io.github.mindstone/mcp-server-microsoft-calendar

    Microsoft 365 Outlook calendar via Graph: list, get, create, update, respond, free/busy.

    runs locally★ 12

27. calendarmcp

    io.github.aernouddekker/calendarmcp

    MCP server for macOS Calendar.app — calendar and event management via AppleScript

    runs locally★ 5

28. Apple Calendar

    io.github.mgcrea/mcp-apple-calendar

    Search, read and act on Apple Calendar — ranges, free-time lookup, writes off by default

    runs locally★ 4

29. Nonlinear Calendar

    io.github.singularitybpjade/balance-engine

    Nonlinear Calendar: this year’s months fold onto the previous 12 years. No key to try.

    Answers the MCP handshake and lists its tools

30. Multi-account MCP for Gmail, Calendar, Drive, Docs, and Sheets — 61 tools, token

    io.github.adelaidasofia/google-workspace-mcp

    Multi-account MCP for Gmail, Calendar, Drive, Docs, and Sheets — 61 tools, token-efficient, macOS…

    runs locally★ 3

Showing the top 30 of 267. Search all.