X402 Express Server and Client

This project demonstrates how to use X402 payment system with Express.js, allowing API endpoints to charge for access using Solana USDC payments.

What is X402?

X402 is a payment protocol that enables API endpoints to automatically charge clients for access. Payments are processed on the Solana blockchain using USDC.

Features

• Protected API Routes: Endpoints that require payment to access
• Automatic Payment Processing: Clients automatically pay when calling protected endpoints
• Solana Integration: Payments processed on Solana using USDC
• Configurable Settings: Customize payment amounts, network, and payment address

Quick Start

Try the protected endpoint:

• API Base - Check API status
• Protected Endpoint - Requires payment (100 USDC)

Usage

For detailed setup and usage instructions, see the About page or check the GitHub repository.