UniHooks

DecayFeeHook

Robinhood

Runs code on every swap. Can take tokens from swaps. Sets its own swap fee. Runs at pool creation.

0x558e7733c5311901588d5f37d4aa4cfc58c5a044 First pool 13 Oct 2026View on explorer
CBe carefulNot in Uniswap’s hook registry · Can take tokens out of swaps
Pools
5
Dynamic-fee pools
5
Last new pool
21d
Code size
6,819 B

What it can do

Runs code on every swap

Its code executes inside each trade in pools that use it.

Can take tokens from swaps

It can take or add tokens during a swap. Fees, burns and custom curves work this way, and so do scams.

Sets its own swap fee

Pools using it let the hook choose the swap fee instead of a fixed tier.

Runs at pool creation

It runs when a pool is created, often to lock in that pool’s settings.

Safety report

Automated checks, not an audit
✓Not upgradeableNo proxy pattern found: the code is fixed.
✓No owner foundNo owner() function: nobody has an admin switch (as far as the standard check goes).
!Not in Uniswap’s hook registryUnregistered hooks get less scrutiny. Most scam hooks are unregistered.
✓Source code publishedThe code on the block explorer matches what's deployed (contract: DecayFeeHook).
iCan change swap amountsIt has a ReturnDelta permission. Normal for fees and burns, but also how fake-quote hooks steal.
?No audit linkedAutomated checks only.

Pools using this hook

5 total
PairCreatedFeePool ID
MPTB / wtGRND 21d dynamic 0x9626…7f4f Tx ↗
MPTA / wtDNUT 21d dynamic 0xc0b8…b9a7 Tx ↗
MPTA / wtWMT 21d dynamic 0xcae5…e037 Tx ↗
wtWMT / PRB3 23d dynamic 0xdf04…ef33 Tx ↗
PRB3 / wtFGI 23d dynamic 0xafd9…4245 Tx ↗