Calendarmcp runs on your own machine — the client starts it, so there is no endpoint to ping. 23 installs a week from npm. Last commit 2 Sep 2026.
MCP server for macOS Calendar.app — calendar and event management via AppleScript
Today is the operative word: we check Calendarmcp every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
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 calendarmcp -- npx -y @aernoud/calendarmcp
{
"mcpServers": {
"calendarmcp": {
"args": [
"-y",
"@aernoud/calendarmcp"
],
"command": "npx"
}
}
}
[mcp_servers.calendarmcp]
command = "npx"
args = ["-y", "@aernoud/calendarmcp"]
{
"mcpServers": {
"calendarmcp": {
"args": [
"-y",
"@aernoud/calendarmcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"calendarmcp": {
"args": [
"-y",
"@aernoud/calendarmcp"
],
"command": "npx"
}
}
}
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Answers built from our own checks of this server.