io.github.A1-x-Tech/mcp-google-calendar
Google Calendar MCP
Is the Google Calendar MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-06.
MCP server for the Google Calendar API: events, recurrence, invitations, availability, calendars.
alive probed 2026-11-15 · unchanged since 2026-11-06
- Run it
- npx -y @a1-x-tech/mcp-google-calendar@1.1.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- mcp-google-calendar 1.1.2
- Capabilities
- tools
- Instructions
- 1 299 characters
- Of a 1M window
- 1.2 % of a 1M context window
- Count
- 12k tokens in Claude Opus 5.5, exact, measured 2026-11-05. With the Claude Code prefix mcp__…__ on each tool name: 13k. The o200k_base estimate is 7.5k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/A1-x-Tech/mcp-google-calendar
- Website
- https://github.com/A1-x-Tech/mcp-google-calendar#readme
- Registry
- active, updated 2026-11-04 · registry entry
- Changes
- 3 recorded, reachable in 3 of them. A row is added when the result, the tool count or the cost changes.
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.66×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| update_event | 2 038 | 1 227 | 16 % |
| create_event | 2 031 | 1 223 | 16 % |
| list_events | 1 231 | 741 | 10 % |
| create_focus_time | 955 | 575 | 8 % |
| create_out_of_office | 925 | 557 | 7 % |
Compare this server with others.
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- io.github.A0Nexus-bit/a0nexus-bitcoin-mcp · alive
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- Google Apps Script MCP io.github.A1-x-Tech/mcp-google-apps-script · alive
- Google Business Profile MCP io.github.A1-x-Tech/mcp-google-business · alive
- Google Chat MCP io.github.A1-x-Tech/mcp-google-chat · alive
- Google Contacts MCP io.github.A1-x-Tech/mcp-google-contacts · alive
- Google CrUX MCP io.github.A1-x-Tech/mcp-google-crux · alive
- Google Custom Search MCP io.github.A1-x-Tech/mcp-google-custom-search · alive
Servers that mention calendar.
- CalendarMCP ai.calendarmcp/server · needs auth
- Calaf ai.calaf/calaf · needs auth
- Calfeed ai.calfeed/calfeed · needs auth
- Chronary ai.chronary/mcp · alive
- Contio MeetingOS ai.contio/meetingos · needs auth
- OmniSignal ai.omnisignal/omnisignal · needs auth
- Timothe's Growth Calendar ai.timothe/growth-calendar · needs auth
- ai.smithery/Funding-Machine-ghl-mcp-fundingmachine · not found
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-11-06 08:32 | alive | 350 ms | 19 | 12k | 7.5k |
| 2026-11-05 08:32 | alive | 332 ms | 19 | 12k | 7.5k |
| 2026-10-16 06:23 | alive | 315 ms | 19 | 12k | 7.5k |
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.