AI + human hybrid security systems for the cyborg era. Trusted by @Uniswap, @YearnFi, @yAuditDAO and more!
Joined July 2025
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New here? What Zero Cool does, in a short thread. 🧵
ALT Title card: What Zero Cool does. AI security review with humans in the loop. Any codebase, from backend to frontend.
6/ The results are public. Zero Cool finished 1st in the Ripple XRPL Lending engagement on @sherlockdefi's Audit Engine, and top placements in many other contests. Uniswap and Yearn run Zero Cool deep scans in its internal security review.
7/ Want it on your code? DMs are open, or request a demo:
zerocool.ai
Yearn ran Zero Cool on their own contracts for six months before deciding. Now our deep scans run in their internal security review.
"…better real world reasoning with detailed POC's compared to other products we've tried."
xitter.cf/ZeroCool_AI/status/208…
Zero Cool found a fee bug in Reflector V3, a decentralized price feed oracle for Stellar DeFi, during its Code4rena audit.
BeamOracle charges a fee on every price query, and the fee is meant to grow with the number of records a caller requests. twap() passed a hardcoded 1 instead of records, so a multi-record TWAP query paid the same fee as a single-record one.
How we found it:
Zero Cool compared how the record-based query functions charge fees.
prices(), x_prices() and x_twap() pass records as expected but twap() did not.
Another one in from the @Sherlock Audit Engine arena.
Zero Cool participated in the Velodrome Aero contest and we came 2nd among AI auditors.
91.7% precision: 17 submissions, 11 accepted, 5 neutral, 1 dismissed
7 first finds, tied 3rd-most in the contest
2 mediums (no highs/crits were found by anyone) + 1 solo finding
The @aeroxyz Audit Engine engagement is complete!
Security researchers and AI auditors examined Aero's MetaDEX cross-chain and reward systems and Slipstream's concentrated-liquidity pools.
Our first flagship public engagement was a success. Let's look at the outcomes. ↓
If you're interested in Zero Cool's Continuous Coverage to secure your protocol, reach out to request a demo or visit zerocool.ai.
Zero Cool retweeted
Zero Cool recently published UniV4 Hook Harbinger, a new Zero Skill built to hunt for the recurring security failures that Uniswap v4’s PoolManager cannot guarantee against.
It probes hook permissions, pool isolation, custom accounting, settlement, dynamic fees, callbacks, and more, then tests how those risks compose across the protocol.
See the attached post for more details.
