MEV Protection evaluated across order-flow privacy in practice, rebate published and reaching the end user's address, inclusion breadth and what happens when your transaction is dropped, and independence and quality of the protection evidence.
MV
#1 of 8 · published ranking
MEV Blocker
79ChainChoice Score
4199
Why it leads
Best in the pool on rebate paid to user and inclusion and censorship
Cost
Not priced· No comparable price is published
No provider can pay for a position in this table. The code that computes this order cannot read which links earn us a commission, and every build proves it. Every score below rebuilds from the published criteria.Ranking 2026.08 · 4 criteria · 8 products · same inputs, same order
Personal comparison
MEV Protection ranked comparison
No comparable price is published; ranking still uses verified product evidence.
RankProviderBest fitScore
1
MVMEV BlockerEthereum RPC endpoint running a backrun...Top ranked
Rebate published AND reaching the end user's address — 9/10Trade-off: It is no longer a CoW DAO product. Special Mechanisms Group, a Consensys subsidiary,...
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
2
FLFlashbots ProtectOriginal private RPC, now routed throug...
Rebate published AND reaching the end user's address — 7/10Trade-off: The headline "100% of gas fee refunds" is conditional on BuilderNet winning the block...
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
5
UniswapXUniswapXIntent-based routing where fillers comp...
Inclusion breadth and what happens when your transaction is dropped — 5/10Trade-off: It is marketed under 'MEV protection' but your signed order is broadcast publicly and...
Ranked on 4 published criteria weighted 30/30/20/20, which set goal alignment — 30 of the 86 points. The rest: regional access 20, evidence depth 18, ease of use 10, institutional trust 8. Profile match is shown in breakdowns but carries no weight.
Audit
Infrastructure
Methodology
2026.09.15
published 2026-09-16
Providers tracked
980+
across 119 categories
Last verified
2026-09-14
newest dated pricing or sentiment read
Named on the roster
2 people
managing directors · 6 automated processes
Decision guide
What matters most before choosing in this category
The best MEV protection depends on whether you need the transaction genuinely withheld until inclusion, and on where any rebate actually lands. Those two carry 60% of the weight between them, because they are the mechanism and the payout — an endpoint that leaks calldata to builders before inclusion has not protected anything, and a published rebate rate that settles anywhere other than your own address is not a rebate to you. Inclusion breadth and the independence of the protection evidence follow.
What matters most before choosing in this category
The best MEV protection depends on whether you need the transaction genuinely withheld until inclusion, and on where any rebate actually lands. Those two carry 60% of the weight between them, because they are the mechanism and the payout — an endpoint that leaks calldata to builders before inclusion has not protected anything, and a published rebate rate that settles anywhere other than your own address is not a rebate to you. Inclusion breadth and the independence of the protection evidence follow.
Do you need the transaction genuinely withheld until inclusion, or is a faster public route acceptable?
Which chain are you swapping on — most protection services are EVM-only, while Jupiter is the default on Solana?
Would you accept slower inclusion in exchange for a genuinely private route?
Current editor lead
Expert review and scoring weights
MV
MEV BlockerData checked Sep 2026
Ethereum RPC endpoint running a backrun-only order flow auction
Ethereum RPC endpoint running a backrun-only order flow auction. Strongest on rebate published and reaching the end user's address (9/10): 90% of the backrun profit is "paid to the user that sent the transaction (tx.origin), immediately in the same block" (mevblocker.io FAQ). Self-published cumulative totals: "5.5K+ ETH rebated to users", "$26 USD value of median rebate" across "62M+ transactions" and "$219B+ volume protected". Coverage of the January… Weakest on independence and quality of the protection evidence (5/10): Ranked best on every metric by arXiv:2505.19708 — a paper authored by Paul Janicot and Alex Vinyas of CoW DAO Research, i.e. MEV Blocker's own co-creator, not an independent party. Its own documentation also contradicts itself on the same page: "MEV Blocker processes around 10% of daily Ethereum transactions" appears… Published price: Free to users.
Best forRebate published AND reaching the end user's address — 9/10
Main tradeoffIt is no longer a CoW DAO product. Special Mechanisms Group, a Consensys subsidiary, acquired MEV Blocker RPC (announced January 2026) and now operates it — so the same corporate parent controls both MEV Blocker (90% to the user) and MetaMask Smart Transactions (no user rebate documented). Separately, the 90% rebate and maximum privacy are mutually exclusive: /fullprivacy pays "No rebate".
Verify before signupFree to users: the docs describe MEV Blocker as "free for users to integrate". "MEV Blocker shares transactions with searchers via backrun bundles, returning 90% to the user." Revenue comes from builders: "Builders must pay MEV Blocker fees to access MEV Blocker transaction flow", billed as "Charge each builder 80% of the realized MEV Blocker value for the blocks they produced." The docs give two different figures for the share that goes back to wallets and other flow originators: "MEV Blocker shares 50% of builder fees with wallet flow originators" (How it works) and "redistributing 90% of builder fees that are attributable to the order flow originator" (Order flow auction).
Methodology
How this category is reviewed
Reviewed on order-flow privacy in practice, rebate published and reaching the end user's address, inclusion breadth and what happens when your transaction is dropped, and independence and quality of the protection evidence.
The order on this page is the published ranking for this category. Every criterion, weight and source behind it is on the methodology page.
Frequently asked
Questions people ask before choosing mev protection
What is the safest MEV protection service?
Protection comes from whether the endpoint actually withholds your transaction. An endpoint that leaks calldata or hints to builders before inclusion has not protected anything, whatever block rate it advertises.
Do rebates actually reach me?
That is exactly what is scored, at 30% of the weight. A published rebate percentage that settles anywhere other than the trader's own address is not a rebate to the trader, so the criterion asks for evidence of arrival rather than an advertised rate.
What happens if my transaction is dropped?
It depends on the builder set behind the endpoint, which is why inclusion breadth and documented drop behaviour are scored together. A private relay that can protect you can also censor you, so the centralisation of that set is treated as a fact about your exposure.
Why are vendor-published protection rates not scored?
Because almost none of them can be independently reconstructed. A protection rate computed and published by the party selling the protection is shown here for context, and what is scored instead is whether the claim rests on data anyone outside the vendor could verify.
Not financial advice · For informational purposes only · Always do your own research
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