curl -i -X GET "https://api.box.com/2.0/groups" \
     -H "authorization: Bearer <ACCESS_TOKEN>"

{
  "total_count": 5000,
  "limit": 1000,
  "offset": 2000,
  "order": [
    {
      "by": "type",
      "direction": "ASC"
    }
  ],
  "entries": [
    {
      "id": "11446498",
      "type": "group",
      "name": "Support",
      "group_type": "managed_group",
      "created_at": "2012-12-12T10:53:43-08:00",
      "modified_at": "2012-12-12T10:53:43-08:00",
      "provenance": "Active Directory",
      "external_sync_identifier": "AD:123456",
      "description": "Support Group - as imported from Active Directory",
      "invitability_level": "admins_only",
      "member_viewability_level": "admins_only",
      "permissions": {
        "can_invite_as_collaborator": true
      }
    }
  ]
}