Simulithic (YC F26) launches: AI agents test your app like real users, no test scripts

KlausCodes · x · 2026-10-22

KlausCodes announced Simulithic (YC F26), which sends AI agents through your app like real users — across browsers, devices, and account types — and reports what broke without you writing a single test script.

Co-founder aaronepstein: most founders no longer manually review their code, and now they won't need to manually test either. The teams that ship fastest will be the ones that can verify as fast as they build.

Related event: YC-Backed Simulithic Lets AI Agents Test Apps Like Real Users Without Scripts(2 posts)→

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