UniHooks

LemonV4TaxHook

RobinhoodRegistered

A tax hook for lemon.fun token launches that charges configurable buy and sell fees (up to 10% creator + 0.5% protocol) in the paired asset using BeforeSwapDelta and afterSwapReturnsDelta. Per-pool tax settings are written once by the launcher before initialization and are immutable afterward.

0xdfc859c2b6b805da12b703123572b8e0b4f760cc First pool 6 Sept 2026View on explorer
ALooks safeRegistered, verified, immutable
Pools
21
Dynamic-fee pools
0
Last new pool
54d
Code size
5,083 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.

Runs at pool creation

It runs when a pool is created, often to lock in that pool’s settings.

Safety report

Automated checks, not an audit
✓Not upgradeableNo proxy pattern found: the code is fixed.
✓Listed in Uniswap’s hook registryRegistered with Uniswap Labs (a listing, not a security review).
✓Source code verifiedPublished source matches the deployed code.
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

21 total
PairCreatedFeePool ID
0xfde7…0823 / 0xfe0f…9c9d 54d 1.00% 0x7995…68ef Tx ↗
ETH / 0x820b…fffd 56d 1.00% 0xab83…db82 Tx ↗
ETH / 0xd795…8e55 56d 1.00% 0x146d…004c Tx ↗
ETH / 0x27ed…ced9 56d 1.00% 0x201c…a58f Tx ↗
ETH / 0x85df…5485 56d 1.00% 0xd83b…9323 Tx ↗
0xcd6b…7107 / 0xd060…9eec 56d 1.00% 0xd5bc…c06b Tx ↗
ETH / 0xd2c0…cb20 59d 1.00% 0xed75…906d Tx ↗
ETH / 0x853b…e7d1 59d 1.00% 0xc4a8…b6bd Tx ↗
0x7786…773e / 0xf0e1…f7a3 2mo 1.00% 0x47f6…dd6c Tx ↗
ETH / 0x201e…bcf3 2mo 1.00% 0x54e7…fba4 Tx ↗
ETH / 0x4bba…3f31 2mo 1.00% 0xfc11…4df2 Tx ↗
ETH / 0x7713…9b8e 2mo 1.00% 0x88c5…2f6b Tx ↗
ETH / 0x3b18…3273 2mo 1.00% 0x39f5…ecf7 Tx ↗
ETH / 0x3edf…cd44 2mo 1.00% 0x63b3…1255 Tx ↗
ETH / 0x6d13…2282 2mo 1.00% 0x5f3c…6a93 Tx ↗
ETH / 0x7275…f2b0 2mo 1.00% 0x59ca…7ec1 Tx ↗
ETH / 0xe87d…b97c 2mo 1.00% 0x56ff…616c Tx ↗
ETH / 0x4f34…48de 2mo 1.00% 0x1994…f28a Tx ↗
ETH / 0xbde4…e6fb 2mo 1.00% 0x4d38…ed2d Tx ↗
ETH / 0x6c21…2391 2mo 1.00% 0xba38…5d39 Tx ↗
ETH / 0x31c6…f568 2mo 1.00% 0x7fbe…733f Tx ↗