prediction-dashboard

Prediction market arbitrage scanner with a terminal-style UI.

Overview

Real-time orderbook scanner for prediction markets. Detects arbitrage opportunities across multiple platforms.

$ scan --market polymarket --mode binary

markets: 142    opportunities: 3    updated: 17:21:37

Supported Markets

Platform	Chain	Type	Status
Polymarket	Polygon	CLOB	Active
Predict.fun	Blast	CLOB	Pending
Kalshi	Regulated	Exchange	Pending

Arbitrage Strategies

Binary Arbitrage

when ask(YES) + ask(NO) < 1.00 → buy both sides → guaranteed profit

Dutching (Multi-Outcome)

when sum(YES asks) < 1.00 in mutually exclusive markets → buy all outcomes

Tech Stack

• Framework: TanStack React Start
• Runtime: Cloudflare Workers
• Styling: Tailwind CSS 4
• Font: JetBrains Mono

Getting Started

Prerequisites

• Bun (recommended) or Node.js 18+

Installation

git clone https://github.com/your-username/prediction-dashboard.git
cd prediction-dashboard
bun install

Development

bun run dev

Open http://localhost:3000

Build & Deploy

bun run build
bun run deploy  # deploys to Cloudflare Workers

Configuration

Create a .dev.vars file for local development:

# Predict.fun (optional)
PREDICT_FUN_API_KEY=your_api_key

# Kalshi (optional)
KALSHI_KEY_ID=your_key_id
KALSHI_PRIVATE_KEY=your_rsa_private_key

Project Structure

src/
├── routes/
│   ├── __root.tsx      # Root layout
│   ├── index.tsx       # Home page
│   ├── polymarket.tsx  # Polymarket scanner
│   ├── predictfun.tsx  # Predict.fun scanner
│   └── kalshi.tsx      # Kalshi scanner
├── lib/
│   ├── api/            # API integrations
│   └── types.ts        # TypeScript types
└── styles/
    └── app.css         # Global styles

Disclaimer

This tool is for educational and research purposes only. Displayed margins do not account for:

• Slippage
• Trading fees
• Execution risk
• Gas costs (for on-chain markets)

Always do your own research before trading.

License

MIT