Best MEV-protected RPC for Ethereum transactions

Combined ranking

1. 1
   MMEV Blocker—14 pts

   GPT #1Claude #2Gemini #1

   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.

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   GPT 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.

   Gemini 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.

   Claude 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

   Where it falls short

   per GPT Ethereum-mainnet-only, and protection still cannot guarantee safety during reorgs or prevent losses from excessively loose slippage.

   per Claude 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

   per Gemini 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.

2. 2
   FFlashbots Protect—13 pts

   GPT #2Claude #1Gemini #2

   The reference implementation of MEV protection — free, no signup, one-click RPC swap that routes transactions privately to builders, refunds a share of backrun value via MEV-Share, offers configurable privacy/speed hints and revert protection, and is operated by the team that defined the MEV mitigation space; deepest builder connectivity means best inclusion reliability among private RPCs

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   Claude The reference implementation of MEV protection — free, no signup, one-click RPC swap that routes transactions privately to builders, refunds a share of backrun value via MEV-Share, offers configurable privacy/speed hints and revert protection, and is operated by the team that defined the MEV mitigation space; deepest builder connectivity means best inclusion reliability among private RPCs

   GPT Battle-tested private routing with exceptionally broad builder reach, frontrunning and revert protection, MEV-Share rebates, configurable refund-versus-inclusion-speed settings, open-source infrastructure, and more than 66 million processed transactions; a near-tie with MEV Blocker and preferable when Flashbots ecosystem maturity matters most.

   Gemini The pioneer in private mempool routing and the benchmark for stability. It is in a near-tie with MEV Blocker, earning its high rank due to its highly configurable data disclosure settings (via MEV-Share) that allow advanced practitioners to optimize the exact privacy-to-rebate ratio they want.

   Where it falls short

   per GPT Transactions depend on Flashbots’ private order-flow infrastructure and its associated trust, privacy, and censorship-policy assumptions.

   per Claude Inclusion can be slower than the public mempool during low-priority-fee periods since transactions only land via connected builders, and its default privacy settings share some order-flow hints — maximally privacy-sensitive users must tune hints manually

   per Gemini It has high configuration complexity for non-technical users, and its maximum-privacy default settings can result in delayed block inclusion when searchers cannot bid to backrun.

3. 3
   BbloXroute Protect—7 pts

   GPT #4Claude #4Gemini #3

   Leverages bloXroute's high-speed Blockchain Distribution Network (BDN) to provide the lowest latency and fastest block inclusion times for algorithmic traders and DeFi bots.

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   Gemini Leverages bloXroute's high-speed Blockchain Distribution Network (BDN) to provide the lowest latency and fastest block inclusion times for algorithmic traders and DeFi bots.

   GPT Its globally distributed Blockchain Distribution Network and direct private propagation make it compelling for latency-sensitive Ethereum execution, with a simple wallet-compatible endpoint and substantial professional trading infrastructure behind it.

   Claude Free protected RPC backed by bloXroute's low-latency global relay network — good inclusion speed and front-running/sandwich protection, plus a natural upgrade path for traders who later need the paid BDN for latency-sensitive work

   Where it falls short

   per GPT Its main advantage targets performance-sensitive traders, while typical users receive fewer explicit rebate, privacy-mode, and auction-transparency benefits than from MEV Blocker or Flashbots.

   per Claude No meaningful MEV rebates to users, and bloXroute's core business serves searchers/validators — a conflict-of-interest optics problem for users who want an operator aligned purely with transaction senders

   per Gemini It is heavily geared toward institutional and programmatic users, lacking the automated, user-friendly rebate systems designed for retail wallets.

4. 4
   MMerkle—6 pts

   GPT #5Claude #3Gemini #4

   Strong independent option with multi-chain private transaction routing (Ethereum, BSC, Polygon), MEV rebates, transaction streaming and observability tooling that appeals to power users and small teams wanting APIs plus protection in one vendor

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   Claude Strong independent option with multi-chain private transaction routing (Ethereum, BSC, Polygon), MEV rebates, transaction streaming and observability tooling that appeals to power users and small teams wanting APIs plus protection in one vendor

   Gemini Provides robust multi-chain MEV protection using a backrun-only auction framework that is widely integrated natively in major wallets (like Ledger and Trezor) and enterprise APIs (like Alchemy).

   GPT Free Ethereum endpoint with sandwich protection, private-pool routing, MEV extraction, permissionless searcher auctions, transaction-status tooling, and useful multichain support; particularly credible for wallets or integrators that want revenue sharing.

   Where it falls short

   per GPT It has a smaller public operating record and less independently demonstrated Ethereum reach than the leaders.

   per Claude Smaller builder/searcher network than Flashbots or CoW means somewhat weaker inclusion guarantees and rebate volume; more of a commercial platform than a public good, so free-tier limits apply

   per Gemini It relies on centralized routing infrastructure that requires users to trust a single entity, and its standalone public endpoints are less prominent.

5. 5
   Alchemyalchemy.com ↗—3 pts

   GPT #3Claude —Gemini —

   Strongest turnkey choice for production applications already needing a full RPC provider: private routing is built into ordinary endpoints at no extra cost, requires no application changes, uses multiple order-flow-auction partners, and extends beyond Ethereum to major L2s and other chains.

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   GPT Strongest turnkey choice for production applications already needing a full RPC provider: private routing is built into ordinary endpoints at no extra cost, requires no application changes, uses multiple order-flow-auction partners, and extends beyond Ethereum to major L2s and other chains.

   Where it falls short

   per GPT Requires an Alchemy account and offers practitioners less control and transparency over routing, rebates, and privacy policy than specialist endpoints.

6. 6
   MMetaMask Smart Transactions—1 pts

   GPT —Claude #5Gemini —

   MEV protection where most retail users actually are — built into MetaMask, simulates and submits via private tx submission with automatic retry/fee management, so it delivers protection to people who would never manually change an RPC URL; ranked on reach and zero-friction rather than raw mechanism strength

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   Claude MEV protection where most retail users actually are — built into MetaMask, simulates and submits via private tx submission with automatic retry/fee management, so it delivers protection to people who would never manually change an RPC URL; ranked on reach and zero-friction rather than raw mechanism strength

   Where it falls short

   per Claude MetaMask-only and opt-in toggle rather than a general RPC endpoint; routing is controlled by Consensys with less transparency and no user rebates compared to Flashbots/MEV Blocker

7. 7
   SShutter—1 pts

   GPT —Claude —Gemini #5

   Offers cryptographic front-running protection using threshold encryption, ensuring transaction contents are completely hidden from all parties (including builders and searchers) until ordered in a block.

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   Gemini Offers cryptographic front-running protection using threshold encryption, ensuring transaction contents are completely hidden from all parties (including builders and searchers) until ordered in a block.

   Where it falls short

   per Gemini It requires protocol-level integration, which adds cryptographic latency and limits its general-purpose usability on standard Ethereum mainnet.

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Tracked by ModelsAgree · rank 1 = 5 pts … rank 5 = 1 pt · re-polled weekly