curl --request GET \
  --url https://api.aries.com/v1/indices/search \
  --header 'Authorization: Bearer <token>'

{
  "indices": [
    {
      "indexName": "S&P 500",
      "symbol": "SP500",
      "indexGroup": "IND_SPF",
      "valoren": "998434",
      "currency": "USD"
    },
    {
      "indexName": "NEXT FUNDS S&P 500 Semiconductors & Semiconductor Equipment (Industry Group) 35% Capped Index Exchan",
      "symbol": "346A-JP.IV",
      "indexGroup": "IND_GIF",
      "valoren": "0",
      "currency": "USD"
    }
  ]
}