Apple Calendar runs on your own machine — the client starts it, so there is no endpoint to ping. 59 installs a week from npm. Last commit 2 Aug 2026.
Read and create Apple Calendar events on macOS, and find free time across calendars.
What the code does
We read the source, 19 h ago · rules 3dff92dd89df
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.
const started = spawn(helperPath, ['serve'], { stdio: ['pipe', 'pipe', 'inherit'] })
typealias SetDisclaim = @convention(c) (UnsafeMutablePointer<posix_spawnattr_t?>, Int32) -> Int32
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 apple-calendar-mcp -- npx -y @redpop/apple-calendar-mcp{
"mcpServers": {
"apple-calendar-mcp": {
"args": [
"-y",
"@redpop/apple-calendar-mcp"
],
"command": "npx"
}
}
}[mcp_servers.apple-calendar-mcp]
command = "npx"
args = ["-y", "@redpop/apple-calendar-mcp"]{
"mcpServers": {
"apple-calendar-mcp": {
"args": [
"-y",
"@redpop/apple-calendar-mcp"
],
"command": "npx"
}
}
}{
"mcpServers": {
"apple-calendar-mcp": {
"args": [
"-y",
"@redpop/apple-calendar-mcp"
],
"command": "npx"
}
}
}Alternatives to Apple Calendar
same job, measured the same wayList, create, update, and delete events in Apple Calendar on macOS.
MCP server for Cronofy — read calendars, events and free/busy, and create, update or delete events.
Scoped local MCP access to Apple Reminders and read-only Calendar data via macOS EventKit.
MCP server for Nylas — read email, calendars, events and contacts, and send email or create events.
Search, read and act on Apple Calendar — ranges, free-time lookup, writes off by default
On-demand local Apple Mail, Calendar, and Reminders MCP server for macOS.
List, search, and manage calendar events via macOS Calendar.app across all configured accounts.
Google Calendar for AI agents — list/create/delete events and free-busy via OAuth token.
Apple Calendar — questions
Answers built from our own checks of this server.