curl --request POST \
  --url https://api.sully.ai/v2/audio/transcriptions \
  --header 'Content-Type: multipart/form-data' \
  --header 'X-ACCOUNT-ID: <api-key>' \
  --header 'X-API-KEY: <api-key>' \
  --form language=en \
  --form multichannel=false \
  --form audio=@example-file

{
  "data": {
    "id": "tr_abc123def456",
    "status": "pending",
    "created_at": "2024-01-15T10:30:00Z",
    "updated_at": "2024-01-15T10:30:00Z"
  }
}