stakefy-express

Express middleware for Stakefy x402 payments. Add payment requirements to your API in 3 lines of code.

🏠 Main Documentation: github.com/JaspSoe/stakefy-x402

📦 Stakefy Ecosystem

This is part of the complete Stakefy payment infrastructure:

| Package | Description | NPM | |---------|-------------|-----| | x402-stakefy-sdk | Core SDK | | | x402-stakefy-react | React hooks | | | stakefy-express | Express middleware (this package) | |

🚀 Quick Start

npm install stakefy-express x402-stakefy-sdk express

import express from 'express';
import { stakefyPaywall } from 'stakefy-express';

const app = express();

// Protected endpoint - requires 0.01 SOL payment
app.get('/api/premium', 
  stakefyPaywall({ 
    amount: 0.01, 
    merchantId: 'YOUR_MERCHANT_WALLET'
  }),
  (req, res) => {
    res.json({ data: 'premium content' });
  }
);

app.listen(3000);

✨ Features

• ✅ 3-line integration - Add paywalls instantly
• ✅ HTTP 402 compliant - Standard payment required responses
• ✅ Session budgets - Multiple API calls per payment
• ✅ TypeScript support - Full type safety
• ✅ Error handling - Built-in error handling
• ✅ Flexible - Per-endpoint or global middleware

🎯 Examples

API Metering

app.get('/api/ai/generate', 
  stakefyPaywall({ amount: 0.001, merchantId: 'xxx' }),
  async (req, res) => {
    const result = await generateAI(req.body.prompt);
    res.json({ result });
  }
);

Session Budget

// Pay once, make multiple calls
app.use('/api/metered', 
  stakefyBudget({
    budget: 0.1,
    duration: 3600,
    merchantId: 'xxx'
  })
);

Global Middleware

// Apply to all routes
app.use('/api/v2', 
  stakefyPaywall({ amount: 0.005, merchantId: 'xxx' })
);

📖 Full Documentation

For complete documentation, API reference, and more examples:

👉 Complete Documentation

Includes:

• Complete API reference
• Advanced examples
• Client integration
• Error handling
• Best practices

🔗 Links

• Main Docs: https://github.com/JaspSoe/stakefy-x402
• Core SDK: https://npmjs.com/package/x402-stakefy-sdk
• React Package: https://npmjs.com/package/x402-stakefy-react
• Facilitator API: https://stakefy-x402-production.up.railway.app
• Twitter: @stakefy
• Email: [email protected]

📄 License

MIT © Stakefy