{"slug":"mev-blocker","name":"MEV Blocker","domain":null,"best_rank":1,"categories":1,"brief":{"category":"best-mev-protected-rpc-for-ethereum-transactions","title":"Best MEV-protected RPC for Ethereum transactions","rank":1,"of":7,"top":null,"day":"2026-07-18","why":[{"t":"protection against frontrunning and sandwiches","m":["ChatGPT","Gemini"],"q":"protection against frontrunning and sandwiches"},{"t":"returns ~90% of captured value","m":["ChatGPT","Claude","Gemini"],"q":"returns ~90% of captured value to the user"},{"t":"free, permissionless","m":["ChatGPT","Claude"],"q":"free, permissionless, wide wallet adoption"},{"t":"selectable speed/privacy/rebate trade-offs","m":["ChatGPT"],"q":"its endpoint choices expose clearer speed/privacy/rebate trade-offs"}],"gap":[],"fix":[{"t":"Ethereum-mainnet-only","m":["ChatGPT"],"q":"Ethereum-mainnet-only"},{"t":"variable inclusion times","m":["Claude","Gemini"],"q":"complex transactions can see more variable inclusion times"},{"t":"leaks transaction intent data","m":["Gemini"],"q":"It leaks transaction intent data to a whitelist of searchers for bidding"}]},"entries":[{"slug":"best-mev-protected-rpc-for-ethereum-transactions","title":"Best MEV-protected RPC for Ethereum transactions","rank":1,"of":7,"score":14,"appearances":3,"modelRanks":{"ChatGPT":1,"Claude":2,"Gemini":1},"reason":"Free, permissionless protection against frontrunning and sandwiches, competitive backrun rebates, fast inclusion, transparent auction data, and selectable fast, no-revert, and full-privacy endpoints; narrowly beats Flashbots for typical DeFi users because its endpoint choices expose clearer speed/privacy/rebate trade-offs.","reasons":[{"model":"ChatGPT","reason":"Free, permissionless protection against frontrunning and sandwiches, competitive backrun rebates, fast inclusion, transparent auction data, and selectable fast, no-revert, and full-privacy endpoints; narrowly beats Flashbots for typical DeFi users because its endpoint choices expose clearer speed/privacy/rebate trade-offs."},{"model":"Gemini","reason":"It offers the most practitioner-friendly model for typical DeFi users by running an Order Flow Auction (OFA) that shields trades from front-running and sandwiches while automatically returning 90 percent of backrunning bids as rebates. It is in a near-tie with Flashbots Protect, but ranks first due to its seamless, zero-config rebate mechanism."},{"model":"Claude","reason":"Built by CoW DAO with a large searcher network that auctions backrun rights and returns ~90% of captured value to the user, historically the most generous rebate model; free, permissionless, wide wallet adoption, and near-tie with Flashbots Protect — it edges ahead on user rebates, behind on operator neutrality and builder reach"}],"fixes":[{"model":"ChatGPT","fix":"Ethereum-mainnet-only, and protection still cannot guarantee safety during reorgs or prevent losses from excessively loose slippage."},{"model":"Claude","fix":"Protection depends on its searcher/builder consortium honoring rules rather than a single trusted operator, and complex transactions can see more variable inclusion times than Flashbots' pipeline"},{"model":"Gemini","fix":"It leaks transaction intent data to a whitelist of searchers for bidding, and it can suffer from slightly slower inclusion times compared to direct builder routing."}],"updated":"2026-07-18","api":"https://modelsagree.com/api/v1/best/best-mev-protected-rpc-for-ethereum-transactions.json"}],"page":"https://modelsagree.com/product/mev-blocker","check":"https://modelsagree.com/check?q=MEV%20Blocker","updated":"2026-07-18T15:34:13.852Z","attribution":"modelsagree.com, CC BY 4.0"}