Bonsai DefaultHook

BaseRegistered

A Uniswap v4 hook for the Bonsai trading app that overrides the LP swap fee dynamically based on the caller's Bonsai NFT balance: NFT holders pay 0% while non-holders pay 1.5%.

0x8dd4c756f183513850e874f7d1ffd0d7cb498080 First pool 31 Jan 2025View on explorer

ALooks safeRegistered, verified, immutable

Pools

Dynamic-fee pools

Last new pool

18mo

Code size

2,650 B

What it can do

Runs code on every swap

Its code executes inside each trade in pools that use it.

Sets its own swap fee

Pools using it let the hook choose the swap fee instead of a fixed tier.

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: DefaultHook).

?No audit linkedAutomated checks only.

Pools using this hook

5 total

PairCreatedFeePool ID

ETH / SNL 18mo dynamic 0x542b…bc96 Tx ↗

ETH / SATO 18mo dynamic 0xb5c4…82f2 Tx ↗

BONSAI / AGI 21mo dynamic 0x2441…0412 Tx ↗

ETH / BONSAI 21mo dynamic 0xdb8a…3b63 Tx ↗

WETH / BONSAI 21mo dynamic 0x927e…82f2 Tx ↗