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What is MEV?

The invisible tax on DeFi trades — and the bots that collect it.

MEV is the value block builders and bots can extract by choosing the order of transactions in a block. Front-running jumps ahead of your trade; a sandwich wraps it on both sides; a back-run follows it harmlessly. Protection services block the harmful kinds and hand the harmless back-run value back to you.

Top picks

1Private RPC

MMEV Blocker

Blocks harmful MEV and rebates the harmless part to you (up to 90%).

2Private RPC

FFlashbots Protect

Internalizes your MEV via MEV-Share so searchers share it with you.

3Batch-auction DEX

CCoW Swap

Removes the ordering advantage entirely with uniform-price batch auctions.

Bottom line

You can’t avoid MEV existing, but you can stop the harmful kind and reclaim the harmless kind — that’s what these services do.