opacus-payment-demo

💳 Accept USDC micropayments with OpacusPay

Complete payment integration example using Opacus SDK.

💰 Features

• ✅ USDC micropayments ($0.00001 minimum)
• ✅ Real-time payment verification
• ✅ Multiple service tiers
• ✅ Client + Server examples

🚀 Quick Start

Server (Accept Payments)

PRIVATE_KEY=your_key npm start

Client (Make Payment)

PRIVATE_KEY=your_key npm run client

📝 Example Usage

import { OpacusClient } from 'opacus-sdk';

// Server: Accept payments
const server = new OpacusClient({ network: 'testnet' });
await server.initPayments(usdcAddress);

server.onMessage('payment-request', async (frame) => {
  // Verify payment on-chain
  const verified = await verifyPayment(frame.payload);
  
  if (verified) {
    // Process service
    await server.sendMessage(frame.from, result);
  }
});

// Client: Make payment
const client = new OpacusClient({ network: 'testnet' });
await client.initPayments(usdcAddress);

await client.paidRequest(serverUrl, {
  payment: { to: serviceProvider, amount: '0.001' }
});

💡 Use Cases

• API monetization
• Pay-per-use services
• IoT sensor data
• AI model inference
• Content paywalls

🔐 Security

• Payments verified on 0G Chain
• E2E encrypted communication
• Non-custodial (you control keys)

📚 Learn More

• OpacusPay Documentation
• SDK Reference

📄 License

MIT