Search, read and act on Apple Calendar — ranges, free-time lookup, writes off by default
Connect Runs on your machine
claude mcp add mcp-apple-calendar -e APPLE_CALENDAR_ALLOW_WRITES=<APPLE_CALENDAR_ALLOW_WRITES> -e APPLE_CALENDAR_CALENDARS=<APPLE_CALENDAR_CALENDARS> -e APPLE_CALENDAR_ACCOUNTS=<APPLE_CALENDAR_ACCOUNTS> -- npx -y @mgcrea/[email protected]{
"mcpServers": {
"mcp-apple-calendar": {
"command": "npx",
"args": [
"-y",
"@mgcrea/[email protected]"
],
"env": {
"APPLE_CALENDAR_ALLOW_WRITES": "<APPLE_CALENDAR_ALLOW_WRITES>",
"APPLE_CALENDAR_CALENDARS": "<APPLE_CALENDAR_CALENDARS>",
"APPLE_CALENDAR_ACCOUNTS": "<APPLE_CALENDAR_ACCOUNTS>"
}
}
}
}{
"mcpServers": {
"mcp-apple-calendar": {
"command": "npx",
"args": [
"-y",
"@mgcrea/[email protected]"
],
"env": {
"APPLE_CALENDAR_ALLOW_WRITES": "<APPLE_CALENDAR_ALLOW_WRITES>",
"APPLE_CALENDAR_CALENDARS": "<APPLE_CALENDAR_CALENDARS>",
"APPLE_CALENDAR_ACCOUNTS": "<APPLE_CALENDAR_ACCOUNTS>"
}
}
}
}{
"servers": {
"mcp-apple-calendar": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@mgcrea/[email protected]"
],
"env": {
"APPLE_CALENDAR_ALLOW_WRITES": "<APPLE_CALENDAR_ALLOW_WRITES>",
"APPLE_CALENDAR_CALENDARS": "<APPLE_CALENDAR_CALENDARS>",
"APPLE_CALENDAR_ACCOUNTS": "<APPLE_CALENDAR_ACCOUNTS>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
APPLE_CALENDAR_ALLOW_WRITESOptional | Register the mutating tools. Off by default, and the gate decides whether the write tools exist at all rather than merely refusing — an agent with writes off cannot see them. |
APPLE_CALENDAR_CALENDARSOptional | Restrict every read and write to these calendars, by name. |
APPLE_CALENDAR_ACCOUNTSOptional | Restrict every read and write to these Calendar accounts, by name or id. Bounds reading, not just writing. |
Details
| Package | @mgcrea/[email protected] (NPM, stdio) |
| First published | 12 Nov 2026 |
| Last updated | 12 Nov 2026 |
| Registry name | io.github.mgcrea/mcp-apple-calendar |
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