io.github.JonathanRReed/apple-calendar-mcp
Apple Calendar
List, create, update, and delete events in Apple Calendar on macOS.
alive probed 2026-10-15
13tools
3.1ktokens in Claude Opus 5.5
3.3ktokens in Claude Code
1.6 %of a 200k context window
1.6ko200k_base estimate
2.7 sto initialize
9 msto list tools
- Run it
- uvx apple-calendar-mcp==1.1.2 (stdio, probed in a container with the network off)
- Host
- pypi.org
- Reports itself as
- Apple Calendar 1.1.2
- Capabilities
- prompts, resources, tools
- Instructions
- 252 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/JonathanRReed/Apple-MCPs
- Website
- https://github.com/JonathanRReed/Apple-MCPs
- Registry
- active, updated 2026-10-14 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| calendar_update_event | 500 | 30 % |
| calendar_create_event | 339 | 21 % |
| calendar_list_events | 187 | 11 % |
| search_tools | 117 | 7 % |
| get_tool_info | 91 | 6 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.JonathanRReed/apple-calendar-mcp)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.