Service
MEV Protection Architecture — Building MEV-Resistant DeFi Protocols
MEV (Maximal Extractable Value) extraction costs DeFi users $500M+ annually through sandwich attacks, front-running, and arbitrage. Here is the complete architecture for protecting your protocol and its users. Sandwich Attack (most common for AMM users): 1. User broadcasts swap: sell 10 ETH for USDC at expected price $...
// Prevents sandwich attacks by hiding order details until execution contract CommitRevealSwap { mapping(bytes32 => uint256) public commitments; uint256 public constant REVEAL_DELAY = 1; // blocks // Phase 1: User commits to a trade (details hidden) function commitSwap(bytes32 commitment) external { commitments[commitm...
// Frontend: Route swap through Flashbots Protect import { FlashbotsBundleProvider } from '@flashbots/ethers-provider-bundle'; async function protectedSwap( amountIn: bigint, minAmountOut: bigint, path: string[] ) { const flashbotsProvider = await FlashbotsBundleProvider.create( provider, signer, 'https://relay.flashbo...
// In router contract: enforce slippage on-chain function swapWithSlippageProtection( uint256 amountIn, uint256 amountOutMin, // Minimum acceptable output address[] calldata path, address to, uint256 deadline ) external returns (uint256[] memory amounts) { require(block.timestamp <= deadline, "EXPIRED"); amounts = _get...
// Execute large order in time-weighted slices async function twapExecution( totalAmount: bigint, intervals: number, intervalSeconds: number, minPricePerUnit: bigint ) { const sliceAmount = totalAmount / BigInt(intervals); for (let i = 0; i < intervals; i++) { // Check current price is within acceptable range const cur...
Common integrations: The Graph, Alchemy/Infura, OpenZeppelin Defender, and popular wallet providers.
Clarify requirements, compliance needs, architecture risks, and launch goals.
Implement core contracts, integrations, product flows, tests, and deployment automation.
Run QA, prepare audit handoff, deploy infrastructure, and support production rollout.
No — MEV is inherent to any system where transaction ordering can be exploited. The goal is mitigation and redistribution, not elimination. Flashbots MEV-Share redistributes some MEV back to the users whose transactions generate it. Private order flow (Flashbots Protect, CoW Protocol) reduces MEV captured at users' expense. MEV cannot be eliminated in a competitive block production environment.
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