Mac Calendar MCP

Apple App MCP

Workspace for MCP servers that expose local Apple app data to assistants.

Packages

Quick Start

Install the package you want:

pipx install mac-mail-mcp
pipx install mac-calendar-mcp

Build local indexes for fast search:

mac-mail-mcp index --verbose
mac-calendar-mcp authorize
mac-calendar-mcp index

Calendar authorization installs a small helper app with a stable macOS privacy identity. Approve its Full Calendar Access prompt once so terminal, MCP, and scheduled launchd rebuilds can use EventKit consistently. EventKit runs inside that signed app identity; the Calendar MCP does not execute the helper's script through an anonymous osascript process.

Generate optional config files:

mac-mail-mcp init
mac-calendar-mcp init

Index scope is configured separately from tool defaults. Use [index] settings such as Mail accounts or Calendar calendars to control what is stored locally; use [defaults] settings to control what MCP tools use when the caller omits a scope.

Codex CLI

Register one or both servers:

codex mcp add mail -- mac-mail-mcp serve --watch
codex mcp add calendar -- mac-calendar-mcp serve --watch

Confirm the registrations:

codex mcp list
codex mcp get mail
codex mcp get calendar

Claude Code

Create or edit .mcp.json in your project root:

{
  "mcpServers": {
    "mail": {
      "command": "mac-mail-mcp",
      "args": ["serve", "--watch"]
    },
    "calendar": {
      "command": "mac-calendar-mcp",
      "args": ["serve", "--watch"]
    }
  }
}

Watch mode keeps the indexes current while the MCP servers are running. Mail uses file watching; Calendar performs a startup sync and then refreshes when Calendar's local SQLite database files change.

For global Claude Code configuration, put the same mcpServers object in ~/.claude/mcp.json.

Development

This repository is organized as a uv workspace. Each MCP server lives under packages/ with its own package metadata, source, tests, and README.

git clone https://github.com/wagamama/apple-app-mcp
cd apple-app-mcp
uv sync

# All packages
uv run ruff check packages/mac-mail-mcp/src packages/mac-calendar-mcp/src
uv run pytest

# Individual packages
uv run --package mac-mail-mcp pytest packages/mac-mail-mcp/tests
uv run --package mac-calendar-mcp pytest packages/mac-calendar-mcp/tests

Build distributions:

uv build --package mac-mail-mcp
uv build --package mac-calendar-mcp

Documentation

• Shared agent instructions: AGENTS.md
• Mail domain notes: MAIL.md
• Calendar domain notes: CALENDAR.md
• MCP client setup guide: docs/mcp-client-setup.md
• Calendar implementation plan: docs/superpowers/plans/2026-05-30-mac-calendar-mcp-implementation.md

Docs are deployed with GitHub Pages from .github/workflows/docs.yml. The repository must have Pages configured once in Settings -> Pages -> Build and deployment -> Source: GitHub Actions. The workflow deploys the built artifact; it does not try to create or enable the Pages site because GitHub rejects that operation from the default workflow token in some repositories.

Acknowledgements

This codebase is derived from imdinu/apple-mail-mcp. Credit and thanks go to the original authors and contributors for the Apple Mail MCP foundation this repository builds on.

License

GPL-3.0-or-later