curl --request GET \
  --url https://api.messari.io/news/v1/news/sources \
  --header 'X-Messari-API-Key: <api-key>'

{
  "data": [
    {
      "id": "<string>",
      "sourceName": "<string>",
      "sourceType": "News"
    }
  ],
  "error": "<string>",
  "metadata": {
    "limit": 123,
    "page": 123,
    "totalPages": 123,
    "totalRows": 123
  }
}