DEX Arbitrage Bot

An on-chain arbitrage bot that exploits price differences between decentralized exchanges using smart contract execution and optional flash loans.

DEX Coverage:

• Uniswap V2/V3, SushiSwap, PancakeSwap
• Curve, Balancer, 1inch aggregator pools
• Trader Joe, Raydium, Orca (Solana)
• Velodrome, Aerodrome (Optimism/Base)
• 20+ DEXs across 8 chains

Arbitrage Strategies:

• 2-hop: Buy on DEX A, sell on DEX B
• Multi-hop: Route through 3-5 pools for best price
• Flash loan arb: Zero-capital execution via Aave/dYdX
• Sandwich protection: Private mempool submission
• Backrunning: Detect and follow large trades

MEV Protection:

• Flashbots Protect for private transactions
• MEV Blocker integration
• Bundle submission via Flashbots/MEV-Share
• Gas price optimization and bidding
• Failed transaction cost minimization

Smart Contracts:

• Optimized Solidity executor contract
• Gas-efficient multi-call batching
• Upgradeable proxy pattern
• Emergency withdrawal function

Tech Stack:

• TypeScript + ethers.js
• Solidity smart contracts (audited)
• Flashbots SDK
• Multi-chain RPC management
• Docker deployment