ENS Prediction Markets

A decentralized prediction market platform built on Uniswap v4 with ENS integration for human-readable market names.

Live Demo

Visit /demo in the frontend to see an interactive walkthrough of all features.

Deployed Contracts (Sepolia)

Contract	Address
MarketFactory	0xC8e9fB7E459F9E684D1416e021C28Ae155151447
PredictionMarketHook	0xC8AF775a8C11B217581d4850d1d02296C953bAC0

Architecture

┌─────────────────────────────────────────────────────────────────┐
│                         USER FLOW                               │
├─────────────────────────────────────────────────────────────────┤
│   1. User looks up "btc-100k.predict.eth"                      │
│                         │                                       │
│                         ▼                                       │
│   ┌─────────────────────────────────────┐                      │
│   │            ENS RECORDS              │                      │
│   │  • Pool address                     │                      │
│   │  • Resolution oracle                │                      │
│   │  • Expiry timestamp                 │                      │
│   │  • Resolution criteria (IPFS)       │                      │
│   └─────────────────────────────────────┘                      │
│                         │                                       │
│                         ▼                                       │
│   2. User places bet against Uniswap v4 pool                   │
└─────────────────────────────────────────────────────────────────┘

Quick Start

Prerequisites

• Node.js 18+
• pnpm 8+
• Foundry

Installation

pnpm install

Build Contracts

cd packages/uniswap-v4
forge build

Run Tests

cd packages/uniswap-v4
forge test

Start Frontend

pnpm dev

Packages

• ENS Integration - Text record schema and utilities
• Uniswap v4 Hook - Smart contracts with privacy features
• Frontend - Next.js application

Environment Variables

Create a .env file:

NEXT_PUBLIC_WALLETCONNECT_PROJECT_ID=your_project_id
SEPOLIA_RPC_URL=your_rpc_url
PRIVATE_KEY=your_private_key

Deployment

Contracts (Sepolia)

Deploy main contracts:

cd packages/uniswap-v4
PRIVATE_KEY=your_key forge script script/Deploy.s.sol --rpc-url $SEPOLIA_RPC_URL --broadcast

Frontend (Vercel)

cd packages/frontend
vercel --prod

Tech Stack

• Frontend: Next.js 16, React 18, Tailwind CSS
• Web3: wagmi, viem, RainbowKit
• Contracts: Solidity 0.8.26, Foundry
• Protocols: Uniswap v4, ENS

License

MIT