curl --request POST \
  --url https://api.voicv.com/v1/voice-clone \
  --header 'Content-Type: multipart/form-data' \
  --header 'x-api-key: <x-api-key>' \
  --form voice='@example-file'

{
  "code": 200,
  "message": "success",
  "data": {
    "voiceId": "8c97bbb2ff424bb1a580651576774d2d",
    "costCredits": 1000
  }
}