curl --request GET \
  --url https://api.statista.ai/v1/research-ai/answer \
  --header 'x-api-key: <api-key>'

{
  "researchToken": "<string>",
  "state": {},
  "response": {
    "answer": "<string>",
    "keyFacts": [
      {
        "title": "<string>",
        "type": "<string>",
        "unit": "<string>",
        "value": "<string>"
      }
    ],
    "sources": [
      {
        "contentId": "<string>",
        "contentType": "<string>",
        "displayTypeId": 123,
        "isCharged": true,
        "releasedAt": "2023-11-07T05:31:56Z",
        "source": "<string>",
        "text": "<string>",
        "title": "<string>",
        "updatedAt": "2023-11-07T05:31:56Z",
        "url": "<string>",
        "graphicName": "<string>",
        "parentId": "<string>",
        "statisticType": 123,
        "surveyPeriod": "<string>",
        "titleShort": "<string>"
      }
    ]
  }
}