UpHook

BaseRegistered

A fee-charging hook for ETH/token pools that pre-charges buy fees in beforeSwap via BeforeSwapDelta and post-charges sell fees in afterSwap via afterSwapReturnsDelta, splitting revenue among protocol, referral, and token creator. Only owner-configured trusted routers and quoters may swap; exact-output swaps are disabled.

0xe9326cc126cd6dd3e914d40853d239709ca780cc First pool 28 Oct 2025View on explorer

ALooks safeRegistered, verified, immutable

Pools

Dynamic-fee pools

Last new pool

12mo

Code size

5,894 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: allowlist. Not everyone can trade every pool.

?No audit linkedAutomated checks only.

Pools using this hook

2 total

PairCreatedFeePool ID

ETH / AAA 12mo 0.30% 0x1637…49e8 Tx ↗

ETH / tst 12mo 0.30% 0x2b6c…078b Tx ↗