curl --request GET \
  --url https://api.prod.usesimple.ai/api/v1/voices \
  --header 'Authorization: <api-key>'

[
  {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "name": "<string>",
    "description": "<string>",
    "languages": [
      "<string>"
    ],
    "tags": [
      "<string>"
    ],
    "audio_url": "<string>",
    "organization_id": 123,
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  }
]