CryptoBet - A Cross-chain Prediction Market with AI Powered Odds

A cross-chain prediction market platform for sports betting with AI-powered odds and real-time data feeds.

• AI-Powered Odds: Machine learning models combined with real-time market data
• Cross-Chain Betting: Bet from Avalanche Fuji using CCIP-BnM tokens on Ethereum Sepolia markets
• Real-Time Updates: Live odds updates periodically
• Multiple Markets: Support for various sports prediction markets
• Multi-Asset Support: ETH and cross-chain token betting

• Frontend: React, Ethers.js, CSS
• Backend: Python Flask, Selenium, OpenAI
• ML: Scikit-learn, Pandas
• Blockchain: Solidity, Ethereum, Avalanche

This project leverages multiple Chainlink services:

File: FunctionsConsumer.sol

Fetches real-time ML-powered odds from external APIs using Chainlink's decentralized compute network.

function requestOdds(
    string[] memory args,
    uint64 subscriptionId,
    uint32 gasLimit
) external onlyOwner returns (bytes32 requestId)

File: CCIPBetBridge.sol

Enables cross-chain betting between Avalanche Fuji and Ethereum Sepolia with token transfers with data.

function sendBetWithToken(
    uint64 destinationChainSelector,
    address receiver,
    string calldata eventId,
    bool prediction,
    address token,
    uint256 amount,
    bool payWithLINK
) external payable returns (bytes32 messageId)

File: contractUtils.js

Frontend integration utilities for Chainlink services including cross-chain betting and Functions interaction.

# Node.js dependencies
npm install ethers react lucide-react

# Python dependencies  
pip install flask pandas scikit-learn selenium openai schedule python-dotenv

# Get ngrok token

Create .env, new.env file:

CHAINLINK_SUBSCRIPTION_ID=your_subscription_id
OPENAI_API_KEY=your_openai_key
....

1. Deploy MarketRegistry.sol
2. Deploy FunctionsConsumer.sol
3. Deploy PredictionMarketExtended.sol
4. Deploy CCIPBetBridge.sol on both chains
5. Configure cross-chain mappings in config.js

1. Start the ML API server:

cd backend
python odds_api.py

2. Start the real-time data agent:

python agent_real_time_odds.py

3. Start the frontend:

npm run dev

4. Start the ngrok tunnel:

ngrok config add-authtoken  YOURTOKEN
ngrok http --url=YOURDOMAIN 5001

After setting up, run DeployAll_new.s.sol

forge script script/DeployAll_new.s.sol --broadcast  --private-key $wallet_private_key

Ethereum Sepolia (ETH):

await predictionMarket.placeBet(prediction, { value: ethAmount });

Cross-chain from Avalanche Fuji (CCIP-BnM):

await ccipBridge.sendBetWithToken(
    sepoliaSelector, receiver, eventId, prediction, token, amount, true
);

Odds are automatically updated via Chainlink Functions:

await functionsConsumer.requestOdds(["Team A vs Team B"], subscriptionId, gasLimit);

• Prediction Markets: Main betting contracts
• Chainlink Functions: Odds updates
• Currency: ETH

• CCIP Bridge: Cross-chain betting
• Currency: CCIP-BnM tokens

├── src/
│   ├── PredictionMarketExtended.sol    # Main prediction market
│   ├── FunctionsConsumer.sol          #  Chainlink Functions
│   ├── CCIPBetBridge.sol             #  Chainlink CCIP  
│   └── MarketRegistry.sol            # Market discovery
├── script/
│   ├── DeployAll_new.s.sol 
│
├── frontend/
│   ├── App.jsx                       # Main application
│   ├── MarketList.jsx               # Market interface
│   ├── contractUtils.js             # 🔗 Chainlink utilities
│   └── CountdownTimer.jsx           # UI components
└── backend/
    ├── odds_api.py                  # ML odds API
    ├── agent_real_time_odds.py      # Data scraping
    └── matchPredictionTraining.py   # ML model training

POST /odds
Content-Type: application/json

{
  "event": "Brazil vs Argentina"
}

Response:
{
  "yes": 65,
  "no": 35
}

• Allowlisted Chains: CCIP bridges only accept transactions from approved chains
• Sender Validation: Only authorized addresses can trigger cross-chain bets
• Time-Based Controls: Markets automatically close and settle based on timestamps
• Subscription Access: Chainlink Functions protected by subscription model

MIT License - see LICENSE file for details

Powered by Chainlink's decentralized oracle network