Attendee Response Changed
Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.
TriggerpollTry it
Integrate Google Calendar
with your AI workspace
Google Calendar is a time management tool providing scheduling features, event reminders, and integration with email and other apps for streamlined organization
Explore Triggers and Actions
Calendar Event Changes
**SOON TO BE DEPRECATED** - Use Calendar Event Sync (polling trigger) instead. Real-time webhook trigger for calendar event changes. Returns event metadata only. For full event data, use Calendar Event Sync (polling trigger).
TriggerwebhookTry it
Calendar Event Sync
Polling trigger that returns full event data including details, attendees, and metadata. For real-time notifications with basic info, use Calendar Event Changes (webhook).
TriggerpollTry it
Event Canceled or Deleted
Triggers when a Google Calendar event is cancelled or deleted. Returns minimal data: event_id, summary (if available), and cancellation timestamp.
TriggerpollTry it
Event Created
Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.
TriggerpollTry it
Event Starting Soon
Triggers when a calendar event is within a configured number of minutes from starting. Returns event details, time remaining, attendees, and join links when available.
TriggerpollTry it
Event Updated
Triggers when an existing Google Calendar event is modified. Returns the event ID, change type, and the specific fields that changed with their previous and new values.
TriggerpollTry it
Batch Events
Execute up to 1000 event mutations (create/patch/delete) in one Google Calendar HTTP batch request with per-item status/results. Use this to materially reduce round-trips for bulk operations like migrations, cleanup, or large-scale updates.
ActionTry it
Clear Calendar
Clears a primary calendar by deleting all events from it. The calendar itself is preserved; only its events are removed. Primary calendars cannot be deleted entirely.
ActionTry it
Create a calendar
Creates a new, empty Google Calendar with the specified title (summary). Newly created calendars default to UTC timezone; use GOOGLECALENDAR_PATCH_CALENDAR afterward to set the desired timeZone if needed.
ActionTry it
Create ACL Rule
Creates an access control rule for a calendar. Use when you need to grant sharing permissions to a user, group, or domain.
ActionTry it
Create Event
Create a Google Calendar event using start_datetime plus duration fields. The organizer is added as an attendee unless exclude_organizer is True. By default adds Google Meet link (works for Workspace, gracefully falls back for personal Gmail). Attendees can be email strings (required) or objects with email and optional fields. No conflict checking is performed; use GOOGLECALENDAR_FREE_BUSY_QUERY to detect overlaps before creating. Returns event id and htmlLink nested under data.response_data. Example: { "start_datetime": "2025-01-16T13:00:00", "timezone": "America/New_York", "event_duration_hour": 1, "event_duration_minutes": 30, "summary": "Client sync", "attendees": ["required@example.com", {"email": "optional@example.com", "optional": true}] }
ActionTry it
Delete ACL Rule
Deletes an access control rule from a Google Calendar. Use when you need to remove sharing permissions for a user, group, or domain.
ActionTry it
Delete Calendar
Deletes a secondary calendar that you own or have delete permissions on. Deletion is permanent and irreversible — verify the correct calendar_id before calling. You cannot delete your primary calendar or calendars you only have read/write access to. Use calendarList.list to find calendars with owner accessRole. For primary calendars, use calendars.clear instead. Parallel calls may trigger userRateLimitExceeded; sequence bulk deletions.
ActionTry it
Delete event
Deletes a specified event by `event_id` from a Google Calendar (`calendar_id`); idempotent — a 404 for an already-deleted event is a no-op. Bulk deletions may trigger `rateLimitExceeded` or `userRateLimitExceeded`; cap concurrency to 5–10 requests and apply exponential backoff.
ActionTry it
Find event
Finds events in a specified Google Calendar using text query, time ranges (event start/end, last modification), and event types. Ensure `timeMin` is not chronologically after `timeMax` if both are provided. Results may span multiple pages; always follow `nextPageToken` until absent to avoid silently missing events. Validate the correct match from results by checking summary, start.dateTime, and organizer.email before using event_id for mutations. An empty `items` array means no events matched — widen filters rather than treating it as an error.
ActionTry it
Find free slots
Finds both free and busy time slots in Google Calendars for specified calendars within a defined time range. If `time_min` is not provided, defaults to the current timestamp in the specified timezone. If `time_max` is not provided, defaults to 23:59:59 of the day specified in `time_min` (if provided), otherwise defaults to 23:59:59 of the current day in the specified timezone. Returns busy intervals and calculates free slots by finding gaps between busy periods; `time_min` must precede `time_max` if both are provided. This action retrieves free and busy time slots for the specified calendars over a given time period. It analyzes the busy intervals from the calendars and provides calculated free slots based on the gaps in the busy periods. Returned free slots are unfiltered by duration; callers must filter intervals to those fully containing the required meeting length. No event metadata (titles, descriptions, links) is returned; use GOOGLECALENDAR_EVENTS_LIST for event details.
ActionTry it
Get ACL Rule
Retrieves a specific access control rule for a calendar. Use when you need to check permissions for a specific user, group, or domain.
ActionTry it
Get Calendar Profile (Deprecated)
DEPRECATED: Use CalendarListGet instead. Tool to retrieve the authenticated user's primary calendar profile. Use when you need to get information about the user's main calendar, including timezone, settings, and preferences.
ActionTry it
Get Calendar Setting
Tool to return a single user setting for the authenticated user. Use when you need to retrieve a specific calendar setting value.
ActionTry it
Get Color Definitions
Returns the color definitions for calendars and events. Use when you need to retrieve the available color palette for styling calendars or events.
ActionTry it
Get current date and time
Gets the current date and time, allowing for a specific timezone offset. Call this tool first before computing relative dates (e.g., 'tomorrow', 'next Monday') to avoid off-by-one-day errors across timezones.
ActionTry it
Get Event
Retrieves a SINGLE event by its unique event_id (REQUIRED). This action does NOT list or search events - it fetches ONE specific event when you already know its ID. If you want to list events within a time range, search for events, or filter by criteria like time_min/time_max, use GOOGLECALENDAR_EVENTS_LIST instead.
ActionTry it
Get Event Instances
Returns instances of the specified recurring event. Use timeMin/timeMax to constrain the window; omitting bounds can return large result sets and is quota-heavy. On high-volume calls, 403 rateLimitExceeded or 429 too_many_requests may occur; apply exponential backoff (1s, 2s, 4s) before retrying.
ActionTry it
Get Google Calendar
Retrieves a specific Google Calendar, identified by `calendar_id`, to which the authenticated user has access. Response includes `timeZone` (IANA format, e.g., 'America/Los_Angeles') — use it directly when constructing `timeMin`/`timeMax` in other tools to avoid DST errors. An empty `defaultReminders` list is valid (no defaults configured). Insufficient `accessRole` may omit fields like `defaultReminders` and `colorId`.
ActionTry it
Get Single Calendar by ID
Retrieves metadata for a SINGLE specific calendar from the user's calendar list by its calendar ID. This action requires a calendarId parameter and returns details about that one calendar only. NOTE: This does NOT list all calendars. To list all calendars in the user's calendar list, use GOOGLECALENDAR_CALENDAR_LIST_LIST instead.
ActionTry it
Import Event
Tool to import an event as a private copy to a calendar. Use when you need to add an existing event to a calendar using its iCalUID. Only events with eventType='default' can be imported.
ActionTry it
Insert Calendar into List
Inserts an existing calendar into the user's calendar list, making it visible in the UI. Calendars (e.g., newly created ones) won't appear in the list or UI until explicitly inserted.
ActionTry it
List ACL Rules
Retrieves the list of access control rules (ACLs) for a specified calendar, providing the necessary 'rule_id' values required for updating specific ACL rules.
ActionTry it
List Buildings
Lists all buildings for a Google Workspace customer account with full details including addresses, coordinates, and floor names. Use this action when you need to retrieve the complete list of physical building locations configured in Google Workspace Calendar resources. This is useful for workspace administrators managing conference room and resource scheduling across multiple office buildings. Requires Google Workspace administrator privileges with Directory API access.
ActionTry it
List Calendar Resources
Retrieves calendar resources (such as conference rooms) from a Google Workspace domain using the Admin SDK Directory API. Use this action when you need to list available meeting rooms, conference spaces, or other bookable calendar resources in an organization. The action supports filtering by resource category, capacity, building location, and other criteria. IMPORTANT: This requires Admin SDK Directory API access and appropriate admin permissions - it is NOT available for personal Gmail accounts, only Google Workspace domains.
ActionTry it
List Calendar Settings (Deprecated)
DEPRECATED: Use GOOGLECALENDAR_SETTINGS_LIST instead. Tool to return all user settings for the authenticated user. Use when you need to retrieve calendar settings.
ActionTry it
List Events
Returns events on the specified calendar. TIMEZONE WARNING: When using timeMin/timeMax with UTC timestamps (ending in 'Z'), the time window is interpreted in UTC regardless of the calendar's timezone. For example, querying '2026-01-19T00:00:00Z' to '2026-01-20T00:00:00Z' on a calendar in America/Los_Angeles (UTC-8) covers 2026-01-18 4pm to 2026-01-19 4pm local time, potentially missing events on the intended local date. To query for a specific local date, use timestamps with the appropriate timezone offset in timeMin/timeMax (e.g., '2026-01-19T00:00:00-08:00' for PST).
ActionTry it
List Events from All Calendars
Return a unified event list across all calendars in the user's calendar list for a given time range. Use when you need a single view of all events across multiple calendars. An inverted or incorrect time range silently returns empty results rather than an error. An empty `items` list means no events matched the filters—adjust `time_min`, `time_max`, or `q` before concluding no events exist.
ActionTry it
List Google Calendars
Retrieves calendars from the user's Google Calendar list, with options for pagination and filtering. Loop through all pages using nextPageToken until absent to avoid missing calendars. Use the primary flag and accessRole field from the response to identify calendars — display names are not valid calendar_id values. Read access (listing) does not imply write OAuth scopes.
ActionTry it
List Settings
Returns all user settings for the authenticated user. Results include multiple settings keyed by id (e.g., `timeZone`); locate a specific setting by its `id` field. `timeZone` values are IANA identifiers (e.g., `America/New_York`) — use directly in datetime and event logic; align with `timeZone` from GOOGLECALENDAR_GET_CALENDAR for consistent notification times.
ActionTry it
Move Event
Moves an event to another calendar, i.e., changes an event's organizer.
ActionTry it
Patch ACL Rule
Updates an existing access control rule for a calendar using patch semantics (partial update). This allows modifying specific fields without affecting other properties. IMPORTANT: The ACL rule must already exist on the calendar. This action cannot create new rules. If you receive a 404 Not Found error, the rule does not exist - use ACL insert to create it first, or use ACL list to verify available rules. Each patch request consumes three quota units. For domain-type ACL rules, if PATCH fails with 500 error, this action will automatically fallback to UPDATE method.
ActionTry it
Patch Calendar
Partially updates (PATCHes) an existing Google Calendar, modifying only the fields provided. At least one of summary, description, location, or timezone must be provided. Empty strings for `description` or `location` clear them.
ActionTry it
Patch Calendar List Entry
Updates an existing calendar on the user's calendar list using patch semantics. This method allows partial updates, modifying only the specified fields.
ActionTry it
Patch Event
Update specified fields of an existing event in a Google Calendar using patch semantics (array fields like `attendees` are fully replaced if provided); ensure the `calendar_id` and `event_id` are valid and the user has write access to the calendar.
ActionTry it
Query Free/Busy Information (Deprecated)
DEPRECATED: Use GOOGLECALENDAR_FIND_FREE_SLOTS instead (though this tool provides wider secondary/shared calendar coverage). Returns opaque busy intervals only—no event titles or details; use GOOGLECALENDAR_EVENTS_LIST when event details are needed.
ActionTry it
Quick Add Event
Parses natural language text to quickly create a basic Google Calendar event with its title, date, and time, suitable for simple scheduling; does not support direct attendee addition or recurring events, and `calendar_id` must be valid if not 'primary'.
ActionTry it
Remove attendee from event
Removes an attendee from a specified event in a Google Calendar; the calendar and event must exist. Concurrent calls on the same event can overwrite attendee lists — apply changes sequentially per event.
ActionTry it
Remove Calendar from List
Tool to remove a calendar from the user's calendar list. Use when you need to unsubscribe from or hide a calendar from the user's list.
ActionTry it
Stop Channel
Tool to stop watching resources through a notification channel. Use when you need to discontinue push notifications for a specific channel subscription.
ActionTry it
Sync Events (Deprecated)
DEPRECATED: Use GOOGLECALENDAR_EVENTS_LIST instead. EventsList already handles syncToken with automatic param stripping. Synchronizes Google Calendar events, performing a full sync if no `sync_token` is provided or if a 410 GONE error (due to an expired token) necessitates it, otherwise performs an incremental sync for events changed since the `sync_token` was issued.
ActionTry it
Update ACL Rule
Updates an access control rule for the specified calendar.
ActionTry it
Update Calendar
Full PUT-style update that overwrites all calendar metadata fields; unspecified optional fields are cleared. Use GOOGLECALENDAR_PATCH_CALENDAR to update only a subset of fields. Mutates the underlying calendar resource (title, description, timeZone, etc.); use GOOGLECALENDAR_CALENDAR_LIST_UPDATE to change per-user display properties like color.
ActionTry it
Update Calendar List Entry
Updates a calendar list entry's display/subscription settings (color, visibility, reminders, selection) for the authenticated user — does not modify the underlying calendar resource (title, timezone, etc.). To modify the calendar itself, use GOOGLECALENDAR_CALENDARS_UPDATE.
ActionTry it
Update Google event
Updates an existing event in Google Calendar. REQUIRES event_id - you MUST first search for the event using GOOGLECALENDAR_FIND_EVENT or GOOGLECALENDAR_EVENTS_LIST to obtain the event_id. This is a full PUT replacement: omitted fields (including attendees, reminders, recurrence, conferencing) are cleared. Always provide the complete desired event state. Use GOOGLECALENDAR_PATCH_EVENT instead for partial edits.
ActionTry it
Watch ACL Changes
Tool to watch for changes to ACL resources. Use when you need to set up real-time notifications for access control list modifications on a calendar.
ActionTry it
Watch Calendar List
Watch for changes to CalendarList resources using push notifications. Use this to receive real-time updates when calendar list entries are modified.
ActionTry it
Watch Events
Watch for changes to Events resources. Watch channels expire; persist the channel `id` per `calendarId` to re-establish watches after expiration or restarts.
ActionTry it
Watch Settings
Watch for changes to Settings resources.
ActionTry it