Fuse Payments API (x402)

Production API for Fuse blockchain business & consumer payments using the x402 protocol.

Live Deployment

• URL: https://fuse-payments-api.vercel.app
• Network: Base mainnet
• Payment Token: USDC

Overview

This API provides x402 payment endpoints for:

• Blockchain analytics and insights
• Wallet management services
• Business token information
• Consumer payment processing

Dependencies

• @x402/express@^2.10.0 - x402 Express middleware
• @x402/core@^2.10.0 - Core x402 functionality
• @x402/evm@^2.10.0 - EVM blockchain support
• @coinbase/x402@^2.1.0 - Coinbase x402 integration
• express@^5.2.1 - Web framework

Quick Start

npm install
npm start

Deployment

Deployed on Vercel under the fuse-labs scope:

• Automatic deployments from main branch
• Environment: Production
• Region: Auto

x402 Protocol

This service implements the x402 payment protocol, enabling micropayments for API access. Each endpoint requires USDC payment on Base network before returning data.

Usage

Make requests with x402-compatible clients that handle automatic USDC payments:

curl -H "x402-required: true" https://fuse-payments-api.vercel.app/api/endpoint

The service will return payment requirements for x402 clients to fulfill before providing the requested data.