curl --request GET \
  --url https://openapi.enginy.ai/v1/voices \
  --header 'x-api-key: <api-key>'

{
  "message": "<string>",
  "data": {
    "voices": [
      {
        "voiceId": "<string>",
        "name": "<string>",
        "identityId": 123,
        "identityName": "<string>",
        "labels": {
          "language": "<string>",
          "country": "<string>",
          "style": "<string>",
          "gender": "<string>"
        }
      }
    ]
  }
}