macOS Calendar & Reminders MCP Server

Give Claude native control of macOS Calendar and Reminders. A Swift MCP server built directly on EventKit - 29 tools for events, reminders, tags, batch operations, conflict detection, and undo/redo. Not just calendar events: it drives Reminders and tasks too.

People who need productivity tools inside Claude, Cursor, VS Code, or another MCP client. The project is written in Swift.

VERIFIED ACTIVE

LAST COMMIT 2026-07-10 · ★ 33 · #116 OF 139 MAINTAINED PRODUCTIVITY · VERIFIED 2026-08-25

MIT · Swift · how we verify → /methodology

01 · Install macOS Calendar & Reminders

before you install - you'll need

Set DEVELOPER_ID, NOTARY_PROFILE before connecting.

Claude Desktop

Settings → Extensions → Install, then select the https://github.com/kiki830621/che-ical-mcp/releases/download/v1.1.0/che-ical-mcp.mcpb .mcpb bundle

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as Claude Desktop extension (.mcpb bundle)

license MIT - declared in the repository

registry namespace io.github.kiki830621 is GitHub-verified and matches the repo owner

03 · What macOS Calendar & Reminders can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v1.15.0 · 2026-07-10

v1.15.0 - parent-chain diagnostics + versioned-host banner signal · 169 - --print-tcc-path prints its execution context. The diagnostic output now ends with the parent process chain (self → … → launchd) plus a…

v1.14.1 · 2026-07-05

Metadata-only patch. No code or tool-surface changes - the binary is functionally identical to v1.14.0 (Developer ID signed + Apple-notarized, status Accepted). · Fixed · Published metadata understated the tool count…

attachments · 2026-07-07

Issue attachments and figures

04 · Who maintains macOS Calendar & Reminders

macOS Calendar & Reminders is maintained by kiki830621. We track 2 MCP servers from kiki830621 - 2 actively maintained, 41 combined GitHub stars, oldest repo from Jan 2026. Full record: all servers from kiki830621.

  1. che-apple-mail-mcp Apple Mail MCP - 44 tools, SQLite millisecond search, .emlx parser, batch ops ★ 8

05 · Facts

repository
github.com/kiki830621/che-ical-mcp
category
productivity - ranked #116 of 139 actively-maintained productivity servers as of 2026-08-25.
release cadence
7 releases in the last 90 days (latest 2026-07-10)
registry
io.github.kiki830621/che-ical-mcp (active, first published 2026-02-06 · 2 versions)
packages
mcpb:https://github.com/kiki830621/che-ical-mcp/releases/download/v1.1.0/che-ical-mcp.mcpb

06 · macOS Calendar & Reminders FAQ

What is macOS Calendar & Reminders?

Give Claude native control of macOS Calendar and Reminders. A Swift MCP server built directly on EventKit - 29 tools for events, reminders, tags, batch operations, conflict detection, and undo/redo. Not just calendar events: it drives Reminders and tasks too.

Is macOS Calendar & Reminders still maintained?

Yes - as of 2026-08-25, its last commit was 2026-07-10 and it shipped 7 releases in the last 90 days. We re-verify nightly.

07 · Alternatives to macOS Calendar & Reminders

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  6. Pm Claude Skills 1117 professional Agent Skills + workflow recipes - searchable & fetchable over MCP. ★ 1,308 · 2026-08-24

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