ZBS Index What actually exists in applied AI, with the source next to it

mcp server

CalendarMCP

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

Description as published by the maintainer. Source

  • version 1.0.0
  • active

active — Most recent push to the repository was 2026-06-07.

What this server can do

The server requires authentication before it will list its tools (HTTP 403). We do not hold an account for it, so its functions are unknown to us.

Endpoint status observed on . Source: https://calendarmcp.ai/api/mcp.

Signals

These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.

Signal Value What it measures Window Observed Source
GitHub stars 0 Number of GitHub accounts that bookmarked this repository since it was created. It is a bookmark count, not installs, not active users and not quality. cumulative, all time GitHub
Last commit 2026-06-07 Date of the most recent push to any branch. This is the strongest cheap indicator of whether the project is still maintained. point in time GitHub
Open issues 0 Open issues plus open pull requests, as GitHub counts them together. A high number can mean an active project or an abandoned one. as of fetch GitHub
Latest published version 1.0.0 Latest version string the maintainer published to the registry. as of fetch Model Context Protocol
Registry record last updated 2026-05-20 When the registry record was last updated by its maintainer. point in time Model Context Protocol
First listed in the MCP Registry 2026-05-20 Date this server was first published to the official MCP Registry. Not a usage or quality measure. point in time Model Context Protocol
repository status active The repository exists on GitHub and is not archived. This says nothing about how recently it was worked on. as of fetch GitHub
mcp endpoint status auth_required The server requires authentication before it will list its tools (HTTP 403). We do not hold an account for it, so its functions are unknown to us. as of probe calendarmcp.ai

Where to get it

Related, by what their authors tagged them

  • Cleanor — last commit 2026-07-14, shares hosted-mcp
    Zero-auth MCP: image optimize, cited storage/format data, and dev utilities LLMs get wrong.
  • Google Workspace MCP Server — last commit 2026-08-04, shares calendar, google-calendar
    Google Workspace as 39 curated MCP tools: Gmail, Calendar, Drive, Sheets, Docs, and Tasks.
  • app.reassign/reassign — last commit 2026-07-25, shares calendar
    Reassign: a circular 24-hour calendar and time-tracking copilot with ADHD-friendly scheduling.
  • com.local-mcp/local-mcp — last commit 2026-08-06, shares calendar
    Let ChatGPT, Claude & Cursor use your Mac: email, calendar, iMessage, Teams, files. Local, free.
  • io.github.AIWerk/mcp-server-cal — last commit 2026-06-22, shares calendar
    Cal.com scheduling MCP server: manage bookings, event types, and availability.
  • Project Parva — last commit 2026-08-05, shares calendar
    Read-only Nepali date, calendar, festival, Panchanga, and temporal verification tools.
  • io.github.elagerway/magpipe — last commit 2026-06-06, shares calendar
    Manage AI voice agents, calls, SMS, contacts, and phone numbers via Magpipe.
  • io.github.eodozzy/icloud-mcp — last commit 2026-06-30, shares calendar
    Read-only-by-default MCP server for iCloud mail, calendar, and contacts (IMAP/CalDAV/CardDAV).
  • io.github.heznpc/airmcp — shares calendar
    Governed MCP runtime for the Apple ecosystem, available on macOS with per-call approval.
  • io.github.heznpc/iconnect — shares calendar
    MCP server for the entire Apple ecosystem — 123 tools across 14 modules. macOS only.

These share tags the maintainers applied themselves, such as hosted-mcp, calendar, google-calendar. Common tags like "mcp" or "ai" are ignored for this: agreeing with six hundred other projects is not a similarity.

This is not a recommendation and not a test result. It is a map of what the authors said their work is about.

How the author describes it

Topics the maintainer set on GitHub: ai-agents, anthropic, calendar, claude, cursor, google-calendar, hosted-mcp, mcp, model-context-protocol, openai.

This record as data

Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.

GET /api/v1/entries/mcp_server.json

Sources

  1. Full-Vibe/calendarmcp-public on GitHub — GitHub, observed , trust tier 3.
  2. Tools declared by the MCP server at https://calendarmcp.ai/api/mcp — calendarmcp.ai, observed , trust tier 4.
  3. Official MCP Registry — Model Context Protocol, observed , trust tier 1.