Caldav MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 1 454 installs a week from npm. Last commit 6 Nov 2026.
CalDAV calendar operations (list, create, update, delete events) as MCP tools.
Nothing serious here today
Today is the operative word: we check Caldav MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
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 caldav-mcp -e 'CALDAV_BASE_URL=<CALDAV_BASE_URL>' -e 'CALDAV_USERNAME=<CALDAV_USERNAME>' -e 'CALDAV_PASSWORD=<CALDAV_PASSWORD>' -- npx -y caldav-mcp{
"mcpServers": {
"caldav-mcp": {
"command": "npx",
"args": [
"-y",
"caldav-mcp"
],
"env": {
"CALDAV_BASE_URL": "<CALDAV_BASE_URL>",
"CALDAV_PASSWORD": "<CALDAV_PASSWORD>",
"CALDAV_USERNAME": "<CALDAV_USERNAME>"
}
}
}
}[mcp_servers.caldav-mcp]
command = "npx"
args = ["-y", "caldav-mcp"]
env = { CALDAV_BASE_URL = "<CALDAV_BASE_URL>", CALDAV_USERNAME = "<CALDAV_USERNAME>", CALDAV_PASSWORD = "<CALDAV_PASSWORD>" }{
"mcpServers": {
"caldav-mcp": {
"command": "npx",
"args": [
"-y",
"caldav-mcp"
],
"env": {
"CALDAV_BASE_URL": "<CALDAV_BASE_URL>",
"CALDAV_PASSWORD": "<CALDAV_PASSWORD>",
"CALDAV_USERNAME": "<CALDAV_USERNAME>"
}
}
}
}{
"servers": {
"caldav-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"caldav-mcp"
],
"env": {
"CALDAV_BASE_URL": "<CALDAV_BASE_URL>",
"CALDAV_PASSWORD": "<CALDAV_PASSWORD>",
"CALDAV_USERNAME": "<CALDAV_USERNAME>"
}
}
}
}Put your own values in place of
<CALDAV_BASE_URL> (Base URL of the CalDAV server (e.g. https://caldav.example.com)), <CALDAV_USERNAME> (Username for CalDAV authentication), <CALDAV_PASSWORD> (Password for CalDAV authentication).
The author’s registry entry marks them as required.
Alternatives to Caldav MCP
same job, measured the same wayList, create, update, and delete events in Apple Calendar on macOS.
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Google Calendar for AI agents — list/create/delete events and free-busy via OAuth token.
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Google Calendar for LLM agents: find, create, update, move, delete events; free/busy; scheduling.
Google Calendar calendars, events and free-busy checks, as MCP tools.
Caldav MCP — questions
Answers built from our own checks of this server.