A fee-collecting hook for Spark token launches that charges protocol and creator fees on swaps using quote-token amounts, with a block-number-based anti-snipe mechanism that applies elevated fees to early buyers within a configurable window after launch.
0x122feb945933cc9bdadb01ad4dd08f932940c0ccFirst pool 24 Aug 2026·View on explorer
ALooks safeRegistered, verified, immutable
Pools
12
Dynamic-fee pools
0
Last new pool
2mo
Code size
6,025 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: SparkHook).
iCan change swap amountsIt has a ReturnDelta permission. Normal for fees and burns, but also how fake-quote hooks steal.