Aditya JoshiForward Deployed Founding EngineerYour wallet doesn't care how your swap was protected. It only cares how much came back. That's the problem with MEV protection today. Private relays hide your transaction from sandwich bots, Great!!!. But the cost isn't fixed, it depends on how much your trade distorts the pool's price. The same trade can cost pennies in a deep pool or dollars in a shallow one. And nobody tells you whether using a relay is even the cheapest option for your specific trade. Nobody is asking the actual question: what is the mathematically cheapest way to execute THIS specific trade? That's why I built 🛡️MEV Shield. MEV Shield is an autonomous execution firewall for DeFi. Before your swap hits the chain, it: → Simulates the exact sandwich attack a bot would run against your trade using live pool state → Calculates your real MEV exposure down to the dollar → Evaluates three competing strategies unprotected public swap, private relay via Flashbots, and Optimized order splitting → Picks the one that puts the most money back in your wallet The Optimizer uses a cost function that balances MEV reduction against gas overhead, finds the analytical minimum using calculus, then refines it numerically to handle real-world edge cases like threshold effects and chain-specific gas pricing. For small trades? It tells you to do nothing the MEV isn't worth a bot's gas to attack. For mid-size trades? Private relay wins. For whale trades? The math says split and it tells you exactly how many chunks, and why. Three trades, three different optimal strategies. The system adapts to each one. I also integrated ENS as a Decentralized Policy Layer. Your MEV protection preferences risk tolerance, relay thresholds, chunk limits, slippage bounds are stored as text records on your ENS name. Set them once, and they follow your identity across any wallet or protocol that reads the namespace. No database. No accounts. Your config lives on-chain with you. Built this for ETHGlobal HackMoney 2026, but I'm not stopping here. The vision is a fully autonomous execution layer that optimizes across: • Multiple DEXs - routing through whichever pool has the deepest liquidity and lowest MEV surface • Multiple chains - splitting chunks across Ethereum, Arbitrum, Base, Optimism based on real-time gas and bridge costs • Multiple bridges - comparing bridging fees, latency, and security tradeoffs for cross-chain splits • Multiple private relays - not just Flashbots, but MEV Blocker, MEV Share, and chain-specific builders, each with different fee structures and inclusion guarantees Every parameter feeds into the same cost function. The math scales. The more inputs it has, the better it optimizes. DeFi shouldn't require a PhD to not get robbed. But building the thing that prevents it? That took some calculus. Github - https://lnkd.in/diWkxWrx #DeFi #MEV #Ethereum #Web3 #ENS #ETHGlobal #HackMoney2026