curl --request GET \
  --url https://services.leadconnectorhq.com/calendars/{calendarId}/free-slots \
  --header 'Authorization: Bearer <token>' \
  --header 'Version: <version>'

{
  "2024-10-28": {
    "slots": [
      "2024-10-28T10:00:00-05:00",
      "2024-10-28T11:00:00-05:00"
    ]
  },
  "2024-10-29": {
    "slots": [
      "2024-10-29T10:00:00-05:00",
      "2024-10-29T14:30:00-05:00"
    ]
  }
}