X402 - Self-Sovereign Payment System

A payment infrastructure for AI services and digital content using HTTP 402 protocol with blockchain settlement.

Project Structure

sdk/

Core X402 SDK with embedded wallet management, multi-chain support, and React frontend interface.

facilitator-demo/

Complete demonstration of X402 facilitator workflow with servers, client examples, and testing interface.

minigame-example/

Treasure hunt game showing real-world X402 integration with paid API access.

Quick Start

# SDK Development
cd sdk && npm install && npm run dev:frontend

# Facilitator Demo
cd facilitator-demo && node scripts/setup.js && node scripts/start-all.js

# Minigame Example
cd minigame-example && npm install && npm start

Documentation

• SDK Guide
• Facilitator Demo
• Minigame Tutorial
• Project Overview