Google Calendar support, plus a built-in update checker.
⚠️ Updating from v1.0.0? Reauthorize each account
v1.1.0 adds Calendar OAuth scopes, so existing accounts must be reauthorized
before the calendar tools work: run the app's setup wizard and click
Reauthorize next to each account (your mail tools keep working in the
meantime). New installs just go through setup normally.
New — Google Calendar
Ask Claude things like "what's on my calendar Friday?", "am I free Thursday
afternoon?", "schedule a 30-min with sarah@example.com Tuesday 2pm", "move my
3pm to 4":
- List calendars and events (across all accounts at once), read event
details, and check free/busy. - Create (incl. natural-language quick-add), update, delete, and RSVP to
events. - Safety: emailing attendees (
send_updates="all") is treated like sending
mail — it defaults to off, and turning it on is gated by the confirmation
phrase. Deleting an event is marked destructive.
New — update checker
The app now tells you when a newer release is out: a banner in the setup UI, a
check_for_updates tool, and a one-time heads-up at the start of a Claude
conversation. It's notify-only — it never downloads or installs anything —
best-effort, and cached. Set GMAIL_MCP_NO_UPDATE_CHECK=1 to turn it off.
Download & run (Windows)
Download gmail-mcp.exe below (one file, ~22 MB, no install), double-click
it for the setup wizard, then restart Claude Desktop. First launch shows
SmartScreen ("unknown publisher") because the exe is unsigned →
More info → Run anyway. Windows-only build; unchanged from v1.0.0 otherwise.
See the README
for the full walkthrough.