- payments.js: Invoice creation, blockchain polling, payment matching
- Endpoints: POST /api/subscribe, GET /api/subscribe/:id, GET /api/pricing
- Plans: Pro ($10/mo, 1000 captures), Enterprise ($50/mo, 10000 captures)
- Zero fees: Direct USDC transfer monitoring on Polygon
- Unique cent offsets per invoice for payment reconciliation
- Auto-generates API keys on payment confirmation
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
