CalendarMCP vs Icloud Calendar
A side-by-side look at the CalendarMCP and Icloud Calendar MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose CalendarMCP for workplace & productivity work as a local process; choose Icloud Calendar for workplace & productivity as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose CalendarMCP when
- You need dedicated capabilities in the Workplace & Productivity domain.
- You prefer a local stdio subprocess transport.
- You want tools like
list_events, get_event, create_event.
Choose Icloud Calendar when
- You need dedicated capabilities in the Workplace & Productivity domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
ICLOUD_USERNAME, ICLOUD_APP_PASSWORD. - You want tools like
list_calendars, list_events, get_event.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Workplace & Productivity | Workplace & Productivity |
| Quality signal | 48/100 · Fair | 52/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | None listed | ICLOUD_USERNAMEICLOUD_APP_PASSWORD |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 0 |
| Directory activity | 1 views 0 installs 0 upvotes | 2 views 0 installs 0 upvotes |
| Tools | 10 | 8 |
| Full listing | View CalendarMCP | View Icloud Calendar |
Tools & capabilities
CalendarMCP tools 10
list_eventsList events across one or all connected calendars in a time range. Auto-paginates up to 2500 results.get_eventFull details of one event.create_eventCreate an event. Supports attendees, location, reminders, recurrence, all-day.update_eventPartial update of an existing event.delete_eventDelete an event.quick_add_eventCreate from natural language ("Lunch with Sam Friday 1pm").list_calendarsList every calendar the API key can see, with per-calendar R/W permissions.find_free_timeFree/busy query across one or more calendars. The right thing to call before `create_event` to prevent double-booking.manage_attendeesAdd or remove attendees from an event.batch_update_eventsUpdate up to 50 events in one concurrent call.
Icloud Calendar tools 8
list_calendarsList calendarslist_eventsList events in a time rangeget_eventGet an eventcreate_eventCreate an eventupdate_eventUpdate an eventdelete_eventDelete an eventfind_conflictsFind overlapping eventsfree_busyReturn busy time ranges
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
CalendarMCP
{
"mcpServers": {
"calendarmcp": {
"command": "npx",
"args": [
"@modelcontextprotocol/server-fetch"
]
}
}
}
Icloud Calendar
{
"mcpServers": {
"icloud-calendar": {
"command": "npx",
"args": [
"-y",
"icloud-calendar-mcp"
],
"env": {
"ICLOUD_USERNAME": "YOUR_ICLOUD_USERNAME_HERE",
"ICLOUD_APP_PASSWORD": "YOUR_ICLOUD_APP_PASSWORD_HERE"
}
}
}
}
Frequently asked questions
CalendarMCP is categorized under Workplace & Productivity and uses a local stdio subprocess. Icloud Calendar belongs to Workplace & Productivity and uses a local stdio subprocess. Pick CalendarMCP for workplace & productivity work and Icloud Calendar for workplace & productivity.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
CalendarMCP has no declared pricing — check the project's own site. Icloud Calendar has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add calendarmcp and icloud-calendar as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, CalendarMCP has a quality signal of 48/100 (Fair) with 1 views, 0 installs and 0 GitHub stars. Icloud Calendar has 52/100 (Good) with 2 views, 0 installs and 0 GitHub stars.