We secure critical code with
formal verification

Secure your critical code with formal verification tools & formal audits

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Trusted by

StarkwareEthereum FoundationLido

Move fast, break nothing

Agents write code faster than anyone can review it. Formal verification proves the implementation correct against a human-reviewable specification, so agents can ship at full speed without giving up security.

SecuritySecurity with mathematical guaranteesOptimizationFaster code, proven equivalentToolsLean 4 tools for formal verification
Fuzzing samples different paths but does not reach the distant bugConceptual animation, not measured results. Each fuzzing trial follows a different route from one entry point. A distant bug remains visible and unreached by these samples. Verification spreads through all branches, stopping at the counterexample. Green represents verification exploration, not a completed proof. A fuzzer could also find the bug with a suitable input.BugEntry point

What our customers say

Starknet Foundation

$207K

secured across 12,000+ wallets (82.8 ETH) after we found a legacy contract bug

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Verity worked like part of our team. They knew what to look for, they moved before we asked, and their AI infrastructure got us through limits that would have slowed anyone else down.
Teddy Pender

Head of Engineering, Starknet Foundation

Unlink

Formally verified

private payment contracts, audited and then proven correct

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Verity’s formal audit gave us a clear understanding of what the system depends on, and which dependencies we need to monitor while formal verification proved what the code guarantees. Together, that gives us much stronger confidence in our code and a solid foundation for shipping Unlink.
Paul-Henry Kajfasz

Founder & CEO, Unlink

Formal verification across 45 protocols

During our research, we've worked with 40+ teams to help them discover formal methods and secure their critical infrastructure with formal verification.

1inchAerozkSync EraCoW ProtocolSafeMorphoLidoPendleBalancerAgglayerLI.FISuperfluidGearboxZamaEnzymeUsual
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Contact our team

We take 4 protocols per quarter. Formal verification demands deep focus. We'd rather verify fewer contracts well than many poorly.