Free/Busy Query

Google Calendar

Check busy intervals across connected Google calendars without reading event details.

Capability: Calendar management
Current price: $0.0025/request
Availability: Requires connected account

What this API does

Returns busy intervals for up to 50 calendars in a bounded time range without exposing event titles or descriptions. Always one $0.0025 request.

Agents select this operation with tool ID google-calendar.free-busy, then check its current inputs and price before a run.

Inputs and outputs

Input

bodyobject · required

Bounded request body sent to the connected application.

Output

calendarsobject

Returned calendars value.

kindstring

Returned kind value.

timeMaxstring

Returned time max value.

timeMinstring

Returned time min value.

Example request and output

Inspect returns this reviewed example, its estimated cost and the current input schema. Run calculates the estimate for your actual input.

Request

{
  "tool_id": "google-calendar.free-busy",
  "input": {
    "body": {
      "items": [
        {
          "id": "YOUR-GOOGLE-CALENDAR-ID"
        }
      ],
      "timeMax": "2026-08-25T17:00:00Z",
      "timeMin": "2026-08-25T09:00:00Z",
      "timeZone": "Europe/London"
    }
  }
}

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Output

{
  "kind": "calendar#freeBusy",
  "timeMax": "2026-08-17T17:00:00.000Z",
  "timeMin": "2026-08-17T09:00:00.000Z",
  "calendars": {
    "primary": {
      "busy": [
        {
          "end": "2026-08-17T10:30:00Z",
          "start": "2026-08-17T10:00:00Z"
        }
      ]
    }
  }
}