Learn Fast Protocol
Preconfirmations, mev rewards, and sub-second swaps — everything you need to understand the fastest way to transact on Ethereum.
Fast Protocol
What Are Fast Swaps?
Fast swaps are sub-second token exchanges on Ethereum L1, powered by preconfirmations and Permit2 gasless approvals, where users earn mev rewards on every trade.
What Is Fast Protocol?
Fast Protocol is an order flow auction system that delivers sub-second Ethereum swaps powered by preconfirmations, with at least 90% of mev returned to users.
What Is FAST RPC?
FAST RPC is a drop-in Ethereum RPC endpoint that routes transactions through the mev-commit preconfirmation network for sub-second confirmations and mev protection.
Why Should Validators Opt In to mev-commit?
Validators who opt in to mev-commit earn preconfirmation fees on top of standard block rewards, seeing roughly 20x the mev yield compared to non-participants.
Preconfirmations
How Do Preconfirmations Work?
A detailed walkthrough of the preconfirmation lifecycle — from transaction submission through builder commitment, block production, and settlement on Ethereum L1.
What Are Preconfirmations?
Preconfirmations are cryptographic commitments from block builders to include your transaction in a specific position, backed by slashable stake for enforcement.
mev
Mev Rewards: Tokenized mev Redistribution
How Fast Protocol redistributes mev back to the users who create it — at least 90% of the mev your swap generates is returned, creating a new model for fair value distribution.
Miles: How to Earn on Fast Protocol
Miles are Fast Protocol's loyalty system — earned on every swap, proportional to your activity, building toward future token utility and protocol rewards.