🚀 Sienna Backend

X402 Payment Protocol Demo

✅ Backend is running successfully!

📡 API Endpoints

GET /api/payment
Returns X402 payment requirements
GET /api/payment?amount=0.05&network=devnet
Custom amount and network
GET /health
Health check endpoint

🎯 Quick Start

1. Click "X402 Payment Widget Demo" above
2. Install Phantom wallet if needed
3. Get devnet SOL and USDC
4. Configure and test payments