Sell beats.
Run the marketplace.

# Upload a beat with full metadata. Returns { id, slug, preview_url }.
curl -X POST 'https://api.jandgstudios.fun/v1/music/beats' \
  -H 'Authorization: Bearer $JG_API_KEY' \
  -F 'audio=@summer-haze.wav' \
  -F 'cover=@cover.jpg' \
  -F 'title=Summer Haze' \
  -F 'bpm=92' \
  -F 'key=F#m' \
  -F 'genre=lofi' \
  -F 'licenses=lease:2999,premium:9999,exclusive:99900'

# Create a Stripe checkout session for a license tier.
const res = await fetch('https://api.jandgstudios.fun/v1/music/checkout', {
  method: 'POST',
  headers: { 'Authorization': `Bearer ${process.env.JG_API_KEY}` },
  body: JSON.stringify({
    beat_id: 'beat_abc123',
    license: 'premium',
    buyer_email: 'rapper@example.com',
    success_url: 'https://yoursite.com/thanks',
  }),
});
const { checkout_url } = await res.json();

# Subscribe to fulfillment events.
app.post('/jg/webhook', (req, res) => {
  const { type, data } = req.body;
  if (type === 'beat.purchased') {
    // data = { buyer_email, beat_id, license, license_pdf_url, audio_url, amount_cents }
    deliverEmail(data.buyer_email, data.license_pdf_url, data.audio_url);
  }
  res.json({ received: true });
});