FlashArb

Stop losing to MEV. Start earning from it. Cross-chain arbitrage meets profit sharing

FlashArb

Created At

ETHGlobal New Delhi

Winner of

World

World - Best Mini App 1st place

Project Description

FlashArb democratizes MEV by detecting cross-chain arbitrage opportunities during your regular swaps and sharing 75% of the profits directly with you. Using Uniswap V4 hooks, Pyth oracles, and World ID verification, we eliminate MEV extraction while rewarding users for providing liquidity to the ecosystem.

How it's Made

Uniswap V4 Hook Architecture: Built as a native Uniswap V4 hook that intercepts swaps to detect MEV opportunities in real-time using beforeSwap and afterSwap callbacks.

Cross-Chain Price Detection: Integrates Pyth Network oracles to compare prices across 5 Sepolia testnets (Ethereum, Arbitrum, Base, Optimism, Unichain) and identify profitable arbitrage gaps.

Flash Loan Execution: Uses Uniswap V4's native unlockCallback for gasless flash loans, executing cross-chain arbitrage when opportunities exceed 2% profit threshold.

Sybil Resistance: World ID verification with 1-hour rate limiting prevents abuse while ensuring fair profit distribution (75% user, 25% protocol).

Smart Profit Sharing Automated on-chain profit distribution with MEV score tracking, gas compensation for failed trades, and transparent earnings dashboard. Tech Stack:

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