Scheduling & Booking

Connect Google Calendar to any app

Connecting Google Calendar to APIANT lets your AI client build automations on your events, attendee responses and free time. For example: when an event is created with an external attendee, look them up in HubSpot and send a Slack message with their details before the meeting.

Managed connectioncalendar.google.com
6 triggers27 actions

What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.

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What do you want to automate with Google Calendar?

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Connect your AI client

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https://mcp.apiant.ai

Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.

Set it up in your client
Claude Code

Run this in the directory you want to work in.

claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai

Start Claude Code there, approve the server, and sign in in the browser page it opens.

Claude Code guide (opens in a new tab)
Claude, web and desktop

Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.

Setup guide (opens in a new tab)
Cursor

Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.

Setup guide (opens in a new tab)
Zed

Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.

Setup guide (opens in a new tab)
Codex and the ChatGPT desktop app

Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.

Setup guide (opens in a new tab)
Any other MCP client

Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.

Setup guide (opens in a new tab)

Ask in plain language and your agent picks the Google Calendar operations, maps the fields both ways, and tests every scenario before the automation runs.

Build from the assistant inside APIANT, or from your own AI client over MCP. Either way the automation lands in the same account, and the free plan covers both.

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What your agent can do with Google Calendar

Triggers and actions 6 triggers · 27 actions

  • Trigger
    Attendee Response Changed

    Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.

  • Trigger
    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).

  • Trigger
    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.

  • Trigger
    Event Created

    Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.

  • Trigger
    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.

  • Trigger
    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.

  • Action
    Calendar List Insert

    Inserts an existing calendar into the user's calendar list.

  • Action
    Calendar List Update

    Updates an existing entry on the user\'s calendar list.

  • Action
    Calendars Delete

    Deletes a secondary calendar. use calendars.clear for clearing all events on primary calendars.

  • Action
    Calendars Update

    Updates metadata for a calendar.

  • Action
    Create Event

    Creates an event on a google calendar, needing rfc3339 utc start/end times (end after start) and write access to the calendar. by default, adds the organizer as an attendee unless exclude organizer is set to true.

  • Action
    Delete Event

    Deletes a specified event by `event id` from a google calendar (`calendar id`); this action is idempotent and raises a 404 error if the event is not found.

  • Action
    Duplicate Calendar

    Creates a new, empty google calendar with the specified title (summary).

  • Action
    Events Instances

    Returns instances of the specified recurring event.

  • Action
    Events List

    Returns events on the specified calendar.

  • Action
    Events Move

    Moves an event to another calendar, i.e., changes an event's organizer.

  • Action
    Events Watch

    Watch for changes to events resources.

  • Action
    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.

  • Action
    Find Free Slots

    Finds free/busy time slots in google calendars for specified calendars within a defined time range (defaults to the current day utc if `time min`/`time max` are omitted), enhancing busy intervals with event details; `time min` must precede `time max` if both are provided.

  • Action
    Free Busy Query

    Returns free/busy information for a set of calendars.

  • Action
    Get Calendar

    Retrieves a specific google calendar, identified by `calendar id`, to which the authenticated user has access.

  • Action
    Get Current Date Time

    Gets the current date and time, allowing for a specific timezone offset.

  • Action
    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.

  • Action
    List Calendars

    Retrieves calendars from the user's google calendar list, with options for pagination and filtering.

  • Action
    Patch Calendar

    Partially updates (patches) an existing google calendar, modifying only the fields provided; `summary` is mandatory and cannot be an empty string, and an empty string for `description` or `location` clears them.

  • Action
    Patch Event

    Updates 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.

  • Action
    Quick Add

    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'.

  • Action
    Remove Attendee

    Removes an attendee from a specified event in a google calendar; the calendar and event must exist.

  • Action
    Settings List

    Returns all user settings for the authenticated user.

  • Action
    Settings Watch

    Watch for changes to settings resources.

  • Action
    Sync Events

    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.

  • Action
    Update Acl Rule

    Updates an access control rule for the specified calendar.

  • Action
    Update Event

    Updates an existing event by `event id` in a google calendar; this is a full put replacement, so provide all desired fields as unspecified ones may be cleared or reset.

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Google Calendar, answered

Is there a Google Calendar MCP server?

APIANT's MCP server at https://mcp.apiant.ai works with Google Calendar. Add that address to any AI client that takes a remote MCP server, Claude Code included, sign in once in your browser, and your client can build, test and run automations that use Google Calendar's triggers and actions. Nothing to install, and calls over MCP use no assistant credits.

How does Google Calendar authentication work?

Google Calendar connects through a managed sign-in: pick Google Calendar on the Connections page and sign in to your Google account on the vendor's own page. The first time, the dialog may also ask for an API key for the managed sign-in service. Connection credentials are stored encrypted. Details are in the Connections guide at https://apiant.ai/docs/apps/connections.

What can start an automation from Google Calendar?

Any of Google Calendar's 6 triggers in the catalog, including Attendee Response Changed, Event Created, Event Updated and Calendar Event Sync. Describe the moment in plain language and your agent picks the right one.

What can your agent do in Google Calendar?

Any of Google Calendar's 27 actions, including Create Event, Update Acl Rule, Update Event and Calendar List Insert. Your agent maps the data both ways and tests every scenario before it ships.

Which apps can Google Calendar connect to?

Any app in the catalog; the list on this page pairs Google Calendar with each of them. If the other app is missing, point your agent at its API documentation and it builds the connector.

What happens when something fails?

Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.

Is there a free plan?

Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.