JrnyHook

EthereumRegistered

A Uniswap v4 hook for ETH/token pools that collects a configurable protocol fee on every swap, with support for time-decaying "shock fees" that taper from a maximum rate to a baseline over a configured window. Accumulated ETH fees are automatically distributed to registered receivers when a minimum threshold is reached.

0x8cec12bc7ea6b92cd330b77e163fe5dbde88c0cc First pool 5 Jun 2026View on explorer

ALooks safeRegistered, verified, immutable

1 identical copies

Pools

Dynamic-fee pools

Last new pool

4mo

Code size

9,321 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.

!Has an adminowner() is 0xd555…d22e. That account can usually change fees, limits or allowlists after you trade.

✓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 (contract: JrnyHook).

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

2 total

PairCreatedFeePool ID

ETH / JRNY 4mo 1.00% 0xea06…8439 Tx ↗

ETH / JRNY 5mo 0.30% 0x14e8…d0c4 Tx ↗