ETH / APEX
fee dynamic, now 0%- Swap ETH → APEXhook takes 3.00%
- Swap APEX → ETHhook takes 3.00%
- Add, then remove liquiditycame back whole
pool 0x879fe84cae252a525b91eb7616a856542e888363863475c6368561717653e2d9
Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
5 pools use this hook, the first one 37 d ago.
None of the permissions that let a hook take from swaps or from LPs are switched on.
It takes 3.00% of each swap on top of the pool fee.
Liquidity added and removed in the same block came back whole.
Its pools use a dynamic fee that the hook sets before every swap. It stands at 0% now and can change.
No owner() but it has collectAndRouteFees.
Not a proxy, no DELEGATECALL, no SELFDESTRUCT.
Each callback refused a call that did not come from the PoolManager.
5 pools over 36 days.
Measured at block 93,205,778. A hook with an owner or a dynamic fee can behave differently later; scan again before a large trade.
A v4 hook's permissions are the last fourteen bits of its address. The PoolManager calls only what they switch on.
A small swap each way and a liquidity round trip, run through the PoolManager and this hook inside a call that is never sent. The pool fee is expected; anything else missing is the hook.
pool 0x879fe84cae252a525b91eb7616a856542e888363863475c6368561717653e2d9
pool 0x028d9ec313e33bb6732e5bbfd85548d83ec6418f21007831f811e8275fc120aa
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.