List the user's calendars.

Returns calendar IDs, names, and colors. Use this to find which calendar to add events to. Only calendars that hold events are listed; reminder lists are not part of this server's surface.

List or search calendar events.

To list a period (e.g. "what's on tomorrow"), pass only 'after'/'before' and omit 'query'. Recurring events are expanded into individual occurrences, so each occurrence has its own ID and can be updated or deleted independently.

Returns full details including title, start, duration, time zone, description, locations, participants with RSVP status, and recurrence info.

Find open slots on the user's calendars that are long enough for something.

Use this to answer "when am I free for X" or to pick a time before calling create_event. To ask what is already scheduled, use search_events instead.

Openings are reported at their full length, not trimmed to 'duration', so a two-hour gap is reported as two hours even when asked for one.

Not counted as busy: events marked free (TRANSP:TRANSPARENT), cancelled events, and invitations the user declined. All-day events are also not counted -- a birthday does not occupy the day -- but any that overlap the search are listed separately so they can be taken into account.

Create a calendar event. Returns the new event's id.

Use update_event to change an existing event.

Update an existing calendar event.

Use create_event for new events. Only specified fields are changed. For recurring events, pass an occurrence ID (from search_events) to modify just that single occurrence, or the master ID to change the whole series.

Respond to a calendar event invitation.

Sets your participation status and sends a reply to the organizer.

For a recurring event, pass an occurrence id to respond for that occurrence alone, or the series id to respond to the whole series.

Delete a calendar event.

For recurring events, pass an occurrence id to cancel just that occurrence, or the master id to delete the entire series.