curl --request GET \
  --url https://api.hubapi.com/crm/v3/pipelines/{objectType}/{pipelineId}/stages \
  --header 'Authorization: Bearer <token>'

{
  "results": [
    {
      "archived": false,
      "createdAt": "2019-10-30T03:30:17.883Z",
      "displayOrder": 0,
      "id": "1234912",
      "label": "In Progress",
      "metadata": {
        "ticketState": "OPEN"
      },
      "updatedAt": "2019-12-07T16:50:06.678Z"
    }
  ]
}