Ethereum-MEV-Bot

A Maximal Extractable Value (MEV) bot that scans the Ethereum mempool for profitable transactions and executes them to capture arbitrage, frontrunning, and liquidation opportunities.

Overview

This bot is primarily written in JavaScript (75.1%) with some Solidity (24.9%) smart contracts. It monitors pending Ethereum transactions in real-time, analyzes them for MEV opportunities, and submits profitable bundles via Flashbots or directly to the mempool.

Features

• Real-time mempool scanning for profitable MEV transactions
• Support for common MEV strategies: arbitrage, frontrunning, sandwich attacks
• Integration with Flashbots for private bundle submission
• Gas price optimization and transaction simulation
• Solidity contracts to execute atomic arbitrage and liquidation
• Configurable for Ethereum mainnet and testnets

Getting Started

Prerequisites

• Node.js (v16+) and npm installed
• An Ethereum node endpoint (e.g., Infura, Alchemy, or your own) with WebSocket support
• Flashbots access (optional but recommended)
• Wallet private key with ETH for gas fees
• Basic familiarity with Ethereum transactions and smart contracts

Installation

Clone the repository and install dependencies:

git clone https://github.com/yourusername/Ethereum_MEV_Bot.git cd Ethereum_MEV_Bot npm install

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Configuration

Create a .env file in the project root based on .env.example and fill in your credentials:

HTTPS_URL=https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID WSS_URL=wss://mainnet.infura.io/ws/v3/YOUR_INFURA_PROJECT_ID CHAIN_ID=1 BLOCKNATIVE_TOKEN=your_blocknative_api_key PRIVATE_KEY=your_wallet_private_key SIGNING_KEY=your_flashbots_signing_key BOT_ADDRESS=your_deployed_contract_address

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Running the Bot

Start the bot with:

npm run start

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The bot will connect to the Ethereum mempool, analyze transactions, and attempt to capture MEV opportunities.

How It Works

1. Mempool Monitoring: Listens to pending transactions via WebSocket.
2. Opportunity Detection: Simulates transactions to identify arbitrage, liquidation, or frontrunning chances.
3. Bundle Creation: Constructs transaction bundles with your MEV smart contracts.
4. Submission: Sends bundles to Flashbots or the public mempool for inclusion in the next block.

Contributing

Contributions are welcome! Please open issues or pull requests to improve features, add strategies, or fix bugs.

License

MIT License

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