Icloud Calendar MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 272 installs a week from npm. Last commit 8 Sep 2026.
MCP server for iCloud (Apple) Calendar access via CalDAV
What the code does
We read the source, 4 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
postinstall: node lib/postinstall.js
Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.
- name: Strip stale auth from .npmrc (OIDC handles auth)
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add icloud-calendar-mcp -e 'ICLOUD_USERNAME=<ICLOUD_USERNAME>' -e 'ICLOUD_PASSWORD=<ICLOUD_PASSWORD>' -- npx -y @icloud-calendar-mcp/server{
"mcpServers": {
"icloud-calendar-mcp": {
"command": "npx",
"args": [
"-y",
"@icloud-calendar-mcp/server"
],
"env": {
"ICLOUD_PASSWORD": "<ICLOUD_PASSWORD>",
"ICLOUD_USERNAME": "<ICLOUD_USERNAME>"
}
}
}
}[mcp_servers.icloud-calendar-mcp]
command = "npx"
args = ["-y", "@icloud-calendar-mcp/server"]
env = { ICLOUD_USERNAME = "<ICLOUD_USERNAME>", ICLOUD_PASSWORD = "<ICLOUD_PASSWORD>" }{
"mcpServers": {
"icloud-calendar-mcp": {
"command": "npx",
"args": [
"-y",
"@icloud-calendar-mcp/server"
],
"env": {
"ICLOUD_PASSWORD": "<ICLOUD_PASSWORD>",
"ICLOUD_USERNAME": "<ICLOUD_USERNAME>"
}
}
}
}{
"servers": {
"icloud-calendar-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@icloud-calendar-mcp/server"
],
"env": {
"ICLOUD_PASSWORD": "<ICLOUD_PASSWORD>",
"ICLOUD_USERNAME": "<ICLOUD_USERNAME>"
}
}
}
}Put your own values in place of
<ICLOUD_USERNAME> (Your Apple ID email (e.g., [email protected])), <ICLOUD_PASSWORD> (App-specific password for iCloud (not your main Apple ID password)).
The author’s registry entry marks them as required.
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Icloud Calendar MCP — questions
Answers built from our own checks of this server.