Robinhood Chain hook

DoubleBackedFeeHook

ListedRobinhood ChainVerified source
0xa75fea154fd6c2dc233e9ccd1499afb61f6b40ccBlockscout

Takes a fixed 3% swap fee always in native ETH (currency0), splitting fee collection between beforeSwap (ETH-specified trades) and afterSwap (ETH-unspecified trades). All fees are forwarded to a vault address. Pools without native ETH as currency0 pass through without a fee.

1Pools
15Swaps, 7 days
$783Volume, 7 days
74 days agoFirst pool

What it can do to your swap

  • Can take a fee from your outputAfter the pool fills your swap, the hook can keep part of what you were about to receive.
  • Can change the price you getBefore your swap runs, the hook can take or add tokens, so the amount you get is set by its code as well as the pool.
  • Runs code before your swap and can block itThe hook is called before every swap. It can revert, which makes your swap fail.
  • Runs code after your swap and can block itThe hook is called after every swap. It can revert, which undoes your swap.

Read from the hook address: flag bits beforeSwap, afterSwap, beforeSwapReturnsDelta, afterSwapReturnsDelta. Flags glossary.

Last test swap

A quote for a tiny exact-in swap each way through ETH / BACKEDD with Uniswap's V4 Quoter, compared with the pool's mid-price minus its 1.00% LP fee. It is an eth_call: nothing is signed or spent. Probed 24 h ago, every hour.

ETH to BACKEDD3.00% takenIn 0.0000150825 ETHOut 3,183.46 BACKEDD, expected 3,281.95Gas 57,008
BACKEDD to ETH3.00% takenIn 3,315.1 BACKEDDOut 0.0000144836 ETH, expected 0.0000149317Gas 56,648

Swaps per day

10-20110-21310-22010-23410-24710-25010-260

Volume over the same days: $108, $385, $0, $101, $189, $0, $0. Days end at the snapshot, in UTC.

Pools

PairFeeSwaps 7dVolume 7dCreated
ETH / BACKEDD
0xf763da…a6dadd
1.00%15$78373 days agoSwap