Icloud MCP

icloud-mcp covers seven Apple services with two interchangeable backends, and as far as we know it is the only MCP server that does. In local mode it drives the native macOS apps through AppleScript: no credentials, no network, and it reaches the services the iCloud protocols do not expose (Reminders, Notes, Messages, Safari). In cloud mode it speaks IMAP/SMTP, CalDAV and CardDAV instead, so it runs on any machine, not just a Mac. The set-mode tool switches between the two at runtime, without a restart.

Features

The server exposes 41 tools across Email, Calendar, Contacts, Reminders, Notes, Messages and Safari. Each tool carries a typed schema, a human title and behavioural annotations, and every list-* tool returns machine-readable structuredContent alongside its text output. Local mode needs no passwords at all; macOS Automation permissions take their place.

Access and security model

The server speaks JSON-RPC over stdin/stdout only. It opens no ports and listens on no socket.

Credentials are never logged. ICLOUD_APP_PASSWORD is read once at startup and handed only to the IMAP/SMTP/CalDAV/CardDAV clients; diagnostics print a fixed mask, never the value. Where you keep the password is up to you: a .env file beside the module for a manual install, or the .mcpb bundle's sensitive field, which the host stores in the macOS Keychain. Local mode has no password anywhere, since macOS gates access per app through its own Automation prompts, and you can revoke those at any time.

Every tool argument is validated against a zod schema before the handler runs. Arguments are also coerced at each AppleScript interpolation site, so a value that is not a number cannot reach a script template.

Privacy Policy

The server collects nothing and keeps nothing: no telemetry, no analytics, no state on disk. Your data moves only between your machine, the AI client you connect and Apple's services. The full policy, covering collection, storage, third-party sharing, retention and contact, is in PRIVACY.md.

Tools

Tools marked local only return an error in cloud mode, because the iCloud protocols do not expose those services.

Authentication

• about
  • Returns information about this server, the active mode and whether credentials are configured
  • No input
• check-auth-status
  • Verifies credentials are usable for the active mode
  • No input
• set-mode
  • Switches between local and cloud without restarting
  • Input: mode (string, local or cloud)

Email

• list-emails: folder (string, optional), count (number, optional, max 50)
• read-email: uid (string), folder (string, optional)
• send-email: to, subject, body (strings); cc, bcc (strings, optional); isHtml (boolean, optional, cloud mode only)
• search-emails: query, from, subject, folder (strings, optional), unreadOnly (boolean, optional), count (number, optional)
• mark-as-read: uid (string), folder (string, optional), isRead (boolean, optional)
• list-folders: no input

Calendar

• list-events: count (number, optional, max 50), daysAhead (number, optional)
• create-event: summary, start, end (strings, ISO 8601); description, location (optional); calendarUrl (cloud) or calendarName (local)
• update-event: eventUrl (string); any of summary, start, end, description, location. Only the fields you pass change
• delete-event: eventUrl (string)
• list-calendars: no input

Contacts

• list-contacts: count (number, optional, max 50)
• search-contacts: query (string), count (number, optional). Matches name, organisation, email and phone; phone matching ignores formatting
• read-contact: contactUrl (string)
• create-contact: displayName, firstName, lastName, email, phone, organization, title, notes (all optional)
• delete-contact: contactUrl (string)
• list-contact-accounts: no input (local only)
• list-contact-groups: accountId (string, optional) (local only)

Reminders (local only)

• list-reminder-lists: no input
• list-reminders: listName (string, optional), includeCompleted (boolean, optional), count (number, optional)
• create-reminder: name (string); body, dueDate, listName (optional); priority (number 0-9, optional)
• update-reminder: reminderId (string); any of name, body, dueDate, priority
• complete-reminder: reminderId (string), completed (boolean, optional)
• delete-reminder: reminderId (string)
• search-reminders: query (string), count (number, optional)

Notes (local only)

• list-note-folders: no input
• list-notes: folderName (string, optional), count (number, optional)
• read-note: noteId (string)
• create-note: title (string), body (string, optional), folderName (string, optional)
• search-notes: query (string), count (number, optional)

Messages (local only)

Reading requires the imsg CLI and Full Disk Access.

• list-chats: limit (number, optional)
• read-messages: chatId (number); limit (number, optional); start, end (ISO 8601, optional); attachments (boolean, optional)
• send-message: to (string), body (string), file (string, optional)
• react-message: chatId (number), type (love, like, dislike, laugh, emphasis, question)

Safari (local only)

• list-safari-tabs: no input
• get-current-safari-url: no input
• open-safari-url: url (string), inNewWindow (boolean, optional)
• close-safari-tab: windowIndex (number, optional), tabIndex (number, optional)

Tool annotations (MCP hints)

Every tool declares its behaviour explicitly instead of relying on the spec defaults, which are deliberately pessimistic. All list-*, read-*, search-* and get-* tools, plus about and check-auth-status, are marked read-only. Nine tools carry destructiveHint: the four deletions (delete-event, delete-contact, delete-reminder, close-safari-tab), the three that reach another person irrevocably (send-email, send-message, react-message) and the two in-place updates (update-event, update-reminder). Tools that reach the network or another person carry openWorldHint: all Email and Calendar tools, send-message, react-message and open-safari-url. The read-only tools plus mark-as-read, complete-reminder, update-reminder, update-event and set-mode are marked idempotent.

Installation

Requires Node.js 20 or newer.

Let your AI install it

Paste this into Claude, Claude Code, Cursor, ChatGPT or any agent with shell or config access:

Install the iCloud MCP server. It is the npm package "mcp-icloud" (Node 20+),
stdio transport, server name "icloud", command "npx" with args ["-y", "mcp-icloud"].
On Claude Code run: claude mcp add --transport stdio icloud -- npx -y mcp-icloud
For other clients, add that command/args pair to the client's MCP config file.
Local mode (default) needs macOS; cloud mode needs env vars USE_LOCAL_MODE=false,
ICLOUD_EMAIL and ICLOUD_APP_PASSWORD (app-specific password from account.apple.com).
Docs: https://github.com/MrGo2/icloud-mcp

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "icloud": {
      "command": "npx",
      "args": ["-y", "mcp-icloud"]
    }
  }
}

For cloud mode, add credentials:

{
  "mcpServers": {
    "icloud": {
      "command": "npx",
      "args": ["-y", "mcp-icloud"],
      "env": {
        "USE_LOCAL_MODE": "false",
        "ICLOUD_EMAIL": "you@icloud.com",
        "ICLOUD_APP_PASSWORD": "xxxx-xxxx-xxxx-xxxx"
      }
    }
  }
}

Claude Code

claude mcp add --transport stdio icloud -- npx -y mcp-icloud

VS Code

Use the badge at the top of this README, or add the same command/args pair to your MCP settings.

Desktop extension (.mcpb)