curl -X POST https://www.voicelab360.com/api/v1/speech/tts \
  -H "Authorization: Bearer vl360_live_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "Welcome to VoiceLab360.",
    "voice_id": "vl360-neural-001",
    "format": "mp3",
    "speed": 1.0,
    "pitch": 0
  }'

{
  "job_id": "job_abc123",
  "status": "completed",
  "output_url": "https://cdn.voicelab360.com/tts/job_abc123.mp3",
  "duration_ms": 2400,
  "characters_processed": 24,
  "credits_used": 24
}