Fizz: An open-source AI tool for single-command fuzz testing of smart contracts
By
Pashov Audit Group
Summary
Fizz is an open-source AI-powered tool that enables developers to run stateful fuzz tests on smart contracts with a single command. It addresses the common gap where developers know they should fuzz test but find it too complex or time-consuming. Fizz generates invariants, writes stateful fuzz tests, runs campaigns, and has already surfaced multiple High and Medium severity vulnerabilities in smart contracts.
Source
Twitter / XFizz: An open-source AI tool for single-command fuzz testing of smart contractspashov.comKey quotes
· 4 pulledIn 2026, you are not serious about your security if you don't fuzz test your smart contracts.
Everybody knows this, and still, very few actually do it.
We decided that's unacceptable - so we built the solution you wish existed.
Fizz has been surfacing many High & Medium severity vulnerabilities already.
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