ChaplinFeeHook

RobinhoodRegistered

Volatility-based ETH fee hook for ChaplinLauncher pools. Charges dynamic fees (scaling between a configurable base and max bps based on the previous swap's tick movement) on ETH inputs for buys via beforeSwap delta, and on ETH outputs for sells via afterSwap delta. Only exact-input swaps are permitted; exact-output swaps revert.

0xd2425b44bb5b10e44270790b6a4e5821825280cc First pool 2 Aug 2026View on explorer

ALooks safeRegistered, verified, immutable

Pools

Dynamic-fee pools

Last new pool

3mo

Code size

5,657 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 (contract: ChaplinFeeHook).

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

2 total

PairCreatedFeePool ID

ETH / CHAPLIN 3mo 0.00% 0x08f1…01b6 Tx ↗

ETH / TCHAPLIN 3mo 0.00% 0xa52a…3df3 Tx ↗