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The Incredible Hook

Get sponsored and pay $0 gas fees for your swaps in exchange for a discount on swap fees for the sponsor, a win-win deal.

The Incredible Hook

Created At

ETHGlobal London

Winner of

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Uniswap Foundation - Open Track - Pool Operators, Public Goods, Research

Project Description

Swapping on Ethereum can be very expensive, and users often abandon the idea of buying a token they like. This is no longer the case, thanks to the arrival of the incredible hook: swap without paying gas fees and buy the token you want. Get your transaction sponsored in exchange for a discount on swap fees for the sponsor, a win-win deal.

How it's Made

This project uses Uniswap and Permit2 to create sponsored transactions. Users who don't want to pay gas fees for their transaction sign a Permit2 to approve your custom router. An user wishing to sponsor one or more transactions in exchange for a reduction in swap fees calls the custom swap router with a list of permit2 of previous users and call swap for each signatures. The hook will receive from the custom swap router the number of swaps the user has sponsored, and will apply a discount on swap fees according to the number of swaps sponsored.

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