n-payment

// agent.ts
import { createPaymentClient } from 'n-payment';
 
const client = createPaymentClient({
  chains: ['goat-mainnet', 'base-mainnet'],
  ows: { wallet: 'my-agent' },
  policy: {
    maxPerTransaction: 100_000n,    // $0.10 cap per call
    maxPerDay: 10_000_000n,         // $10.00 daily cap
    treasury: 'BTC',                // PegBTC-collateralized
    rateLimit: { maxRequests: 100, windowMs: 60_000 },
  },
});
 
const res = await client.fetchWithPayment('https://hypermove.duckdns.org/api/paid-endpoint');
console.log(await res.json());      // 200 OK, paid in ~1.2s

// server.ts
import { createPaywall } from 'n-payment/middleware';
import { Hono } from 'hono';
 
const app = new Hono();
app.use('*', createPaywall({
  payTo: '0xYourAddress',
  chain: 'goat-mainnet',
  asset: 'USDC',
  routes: {
    '/api/paid-endpoint': { priceMicroUsdc: 10_000n },  // $0.01/call
  },
}));
app.get('/api/paid-endpoint', (c) => c.json({ ok: true }));
export default app;

// paid-mcp-server.ts
import { createPaidMcpServer, paidTool } from 'n-payment/agent';
 
const server = createPaidMcpServer({
  name: 'MyAgentService',
  payTo: '0xYourAddress',
  chain: 'goat-mainnet',
  tools: [
    paidTool({
      name: 'forecast',
      description: 'Get weather forecast',
      price: 10_000n,
      handler: async ({ city }) => ({ city, temp: 22 }),
    }),
  ],
});
await server.listen(3000);