Quickstart

import express from 'express';
import { solanaPaymentMiddleware } from '@cheapay/x402-express';
import { TokenMint } from '@cheapay/x402';

const app = express();

// Protect your premium endpoint with $0.01 USDC payment
app.use('/api/premium', solanaPaymentMiddleware({
  payTo: 'YourSolanaWalletAddressHere',
  routes: {
    '/*': {
      price: '$0.01',
      network: 'solana-devnet', // Use devnet for testing
      mint: TokenMint.USDC.devnet,
      description: 'Premium API access'
    }
  }
}));

// Your protected endpoint
app.get('/api/premium/data', (req, res) => {
  res.json({
    message: 'Premium content unlocked!',
    data: 'This cost $0.01 USDC to access'
  });
});

app.listen(3000, () => {
  console.log('💰 Payment-enabled API running on port 3000');
});

import { solanaPaymentMiddleware } from '@cheapay/x402-next';
import { TokenMint } from '@cheapay/x402';

export const middleware = solanaPaymentMiddleware(
  'YourSolanaWalletAddressHere',
  {
    '/api/premium/*': {
      price: '$0.01',
      network: 'solana-devnet',
      mint: TokenMint.USDC.devnet,
      description: 'Premium API access'
    }
  }
);

export const config = {
  matcher: ['/api/premium/:path*']
};