r1x SDK

Overview

The r1x SDK provides everything you need to build in the agent economy. Create agents that understand payments. Deploy services that agents buy. All with TypeScript type safety and one‑line integrations.

npm install x402-sdk @reown/appkit wagmi viem
# or
pnpm add x402-sdk @reown/appkit wagmi viem

import { create402Response, verifyPayment } from 'x402-sdk';

export async function POST(request: Request) {
  const payment = request.headers.get('x-payment');
  
  if (!payment) {
    // Return 402 with quote
    return create402Response({
      amount: "1.00",
      merchant: process.env.MERCHANT_ADDRESS!,
      description: "Premium API access"
    });
  }
  
  // Verify payment
  const verified = await verifyPayment(payment);
  if (!verified) return new Response('Invalid payment', { status: 400 });
  
  // Return service
  return Response.json({ data: "Your premium content" });
}