Echo Hook

EthereumRegistered

Fixed-fee hook for native ETH/token pools that takes a 2% buy fee and 2% sell fee via beforeSwap/afterSwap return deltas, forwards collected ETH to an external token contract via poolManager.take(), and calls token.processSwap(tx.origin, isBuy, feeAmount) on every swap to advance an external round-chain state machine.

0x5a34795a91ddc9fe00e46b2a0140e37c17a600cc First pool 16 Jun 2026View on explorer

ALooks safeRegistered, verified, immutable

Pools

Dynamic-fee pools

Last new pool

4mo

Code size

2,966 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: Hook).

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 / ECHO 4mo 0.00% 0xcc58…8aa8 Tx ↗