@x402pay/sdk

Production-ready Bitcoin payment SDK implementing the Coinbase x402 v2 protocol on Stacks.

Installation

npm install @x402pay/sdk

Quick Start

import { PaywallButton } from '@x402pay/sdk';

function App() {
  return (
    <PaywallButton
      contentId="article-1"
      price={0.10}
      asset="STX"
      onSuccess={(txId) => console.log('Payment successful:', txId)}
    />
  );
}

Features

• ✅ Full x402 v2 protocol compliance
• ✅ React components for easy integration
• ✅ TypeScript support
• ✅ Multi-asset support (STX, sBTC, USDCx)
• ✅ AI agent detection
• ✅ Production-ready

Documentation

Full documentation: https://paystack-six.vercel.app/docs

Live Demo

https://paystack-six.vercel.app

Contracts

6 production contracts deployed on Stacks testnet:

• Revenue Split
• Subscription Manager
• Escrow with Refunds
• Time-Gated Access
• Royalty Cascade
• Tiered Pricing

View all contracts: https://paystack-six.vercel.app/contracts

License

MIT