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Kerno automatically orchestrates your app and its dependencies locally and mocks external dependencies with zero manual setup or configuration.
"Kerno was up and running in minutes with no manual work, and it made our API migration so much smoother. We could instantly validate that every change made by Cursor worked the way we expected, and now it's a core part of our how we build."
Kerno captures the baseline behavior of critical paths for your REST endpoints, then compares your code changes to the baseline and flags diffs.
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As your app evolves, Kerno updates your baseline tests to keep everything in sync without manual effort.
"Kerno saves us a lot of manual work and helps us catch side effects and issues that would definitely break our projects' backends. Our engineering team loves it."
"Using Kerno with Claude Code has been a game changer. You get quick feedback with no manual effort, and it saves you a lot time and hassle debugging integration issues post-merge."
Fewer breaking backend changes and unintended side effects.
Faster feedback loops for developers, leading to fewer PR bottlenecks
Saved each week per developer troubleshooting integration issues post CI.
