Documentation

npm install @denara/sdk

import { Denara } from '@denara/sdk';

// Initialize with your API key
const denara = new Denara({
  apiKey: process.env.DENARA_API_KEY,
  environment: 'sandbox', // or 'production'
});

// Create a cryptographically signed payment window
const window = await denara.createPaymentWindow({
  amount: 500_00,          // $500.00 max spend
  currency: 'USD',
  ttl: 3600,               // expires in 1 hour
  merchant_categories: [   // restrict to these MCCs
    'cloud_computing',
    'software_services',
  ],
  metadata: {
    agent_id: 'agent-procurement-01',
    task: 'provision-gpu-cluster',
  },
});

// Get the virtual card for this window
const card = await denara.getCard(window.card_id);

console.log('Card number:', card.number);
console.log('Window expires:', window.expires_at);
console.log('Max spend:', window.amount / 100, 'USD');

// The agent uses the virtual card at any Visa merchant
// Our authorization engine validates in <50ms:
//   ✓ Amount within window limit
//   ✓ Merchant category allowed
//   ✓ TTL not expired
//   ✓ Cryptographic signature valid

const purchase = await agent.purchaseCloudCompute({
  provider: 'aws',
  instance: 'p4d.24xlarge',
  hours: 4,
  payment: {
    card_number: card.number,
    expiry: card.expiry,
    cvv: card.cvv,
  },
});

// Check transaction status
const tx = await denara.getTransaction(purchase.tx_id);
console.log('Status:', tx.status);  // 'approved'
console.log('Amount:', tx.amount);  // 34400 ($344.00)