CALEDARO keeps your Google, Outlook, iCloud, Fastmail, Nextcloud and any CalDAV calendars in sync. This MCP server lets Claude, Cursor, Windsurf, and any MCP-compatible assistant reach all of them through one login.
Included on any paid plan. Not available on Free.
Every tool reads or writes across every calendar you've connected — in a single request.
"What's on my calendar Thursday afternoon?" Your AI checks every connected calendar at once — work, personal, client accounts — not just one.
"Find me 45 minutes next week." One request, every calendar checked, actual open slots returned. No back-and-forth.
Create, update, or cancel events on the specific calendar that makes sense — client, personal, or work — and the sync propagates it everywhere.
One-time browser sign-in, then paste the transport URL into your AI client and authorize.
Read covers availability and lookups. Write creates and edits. Sync manages the sync processes themselves.
| Group | Tools |
|---|---|
| Read | list_accounts · list_calendars · list_events · get_event · find_free_time |
| Write | create_event · update_event · delete_event |
| Sync | list_syncs · get_sync · trigger_sync · pause_sync / resume_sync |
Your AI sees time blocks, not event details. Opt into detail sharing per connection.
Browser-based consent. Short-lived access tokens; rotating refresh tokens.
Revoke any connection from your CALEDARO dashboard. Access stops within an hour.
The server can only reach calendars you've already added — not every calendar in your Google or Outlook account.
60-second signup. MCP unlocks on any paid plan.