UniHooks

HoodseaFeeHook

RobinhoodRegistered

Volatility-based fee hook for native-ETH/TOKEN pools. Charges ETH fees on buys in beforeSwap and sells in afterSwap, with fees scaling between a configurable base and max (1%–5%) based on the tick movement of the previous swap. Exact-output swaps are blocked and will revert.

0x21af878c9dc4fdd53a02c44d0ba88544cf5640cc First pool 14 Jul 2026View on explorer
ALooks safeRegistered, verified, immutable
Pools
3
Dynamic-fee pools
0
Last new pool
3mo
Code size
4,846 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.

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).
✓Listed in Uniswap’s hook registryRegistered with Uniswap Labs (a listing, not a security review).
✓Source code publishedThe code on the block explorer matches what's deployed.
iCan change swap amountsIt has a ReturnDelta permission. Normal for fees and burns, but also how fake-quote hooks steal.
iRestricted swapsSwap access: other. Not everyone can trade every pool.
?No audit linkedAutomated checks only.

Pools using this hook

3 total
PairCreatedFeePool ID
ETH / TEST2 3mo 0.00% 0x4bee…4c8b Tx ↗
ETH / TEST 3mo 0.00% 0x4bb5…c26e Tx ↗
ETH / SEAPAD 3mo 0.00% 0x6b3b…7893 Tx ↗