JrnyHook

EthereumRegistered

A protocol-fee hook for ETH-paired Uniswap v4 pools that intercepts swaps to collect a configurable fee on each trade, including a time-decaying "shock fee" window that ramps down from a maximum to a base rate. Collected ETH fees accumulate and are automatically distributed to owner-configured receiver addresses when a minimum threshold is reached.

0x49c4ab474dc5519bfe120acb4098d3e6f61b40cc First pool 9 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 0x7703…58a7. 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

1 total

PairCreatedFeePool ID

ETH / TKN 4mo 0.30% 0x5417…e472 Tx ↗