AgentMarket — Production Platform

Architecture

agentmarket/
├── backend/          # Node.js + Express + Prisma API server
├── frontend/         # Next.js 14 App Router
├── contracts/        # Solidity smart contracts (X Layer)
└── docs/             # API documentation

Stack

Layer	Technology
Frontend	Next.js 14, TypeScript, Tailwind CSS
Backend API	Node.js, Express, TypeScript
Database	PostgreSQL (Supabase) + Prisma ORM
Auth	SIWE (Sign-In with Ethereum) + JWT
Payments	x402 Protocol, USDC, EIP-3009
Blockchain	X Layer (OKX L2, EVM-compatible)
Agent Skills	OKX Onchain OS API
DEX	Uniswap V3 + OKX DEX
Wallets	OKX TEE Agentic Wallets
Deployment	Vercel (frontend) + Railway (backend)

Setup

# 1. Backend
cd backend
cp .env.example .env   # fill in your keys
npm install
npx prisma migrate dev
npm run dev            # http://localhost:4000

# 2. Frontend
cd frontend
cp .env.example .env.local
npm install
npm run dev            # http://localhost:3000

Environment Variables Required

Backend

• DATABASE_URL — PostgreSQL connection string (Supabase)
• JWT_SECRET — 32+ char random string
• OKX_API_KEY / OKX_SECRET_KEY / OKX_PASSPHRASE — OKX Onchain OS
• OKX_PROJECT_ID — OKX developer project ID
• X_LAYER_RPC_URL — X Layer mainnet RPC
• PLATFORM_PRIVATE_KEY — Platform wallet private key (for fee collection)
• USDC_CONTRACT_ADDRESS — USDC on X Layer

Frontend

• NEXT_PUBLIC_API_URL — Backend API URL
• NEXT_PUBLIC_X_LAYER_CHAIN_ID — 196 (mainnet) or 195 (testnet)
• NEXT_PUBLIC_USDC_ADDRESS — USDC contract on X Layer
• NEXT_PUBLIC_REGISTRY_ADDRESS — AgentRegistry contract address