Add an MEV-protection RPC to MetaMask

Two minutes to protect every transaction you make from MetaMask.

You have two routes. The easiest is to enable MetaMask’s built-in Smart Transactions in settings. For full control, add a protection RPC manually: open MetaMask → Settings → Networks → Ethereum Mainnet → replace the RPC URL with rpc.mevblocker.io or rpc.flashbots.net, then save.

Top picks

1Wallet feature

MMetaMask Smart Transactions

The no-setup option: just toggle it on in MetaMask settings.

2Private RPC

MMEV Blocker

Manual RPC: rpc.mevblocker.io — protection on every dApp plus rebates.

3Private RPC

FFlashbots Protect

Manual RPC: rpc.flashbots.net — the battle-tested alternative.

Bottom line

Easiest: enable Smart Transactions. Most control + rebates: set rpc.mevblocker.io or rpc.flashbots.net as your Ethereum RPC.

See the full comparison →