FAQs

A collection of answers to frequently asked questions about Kerno

What is Kerno?

Kerno is your AI co-pilot for backend integration testing. It understands your codebase and uses repository context to automatically write, run, and maintain high quality integration tests that cover edge cases and workflows. Results appear instantly in your IDE, so you avoid long CI waits and ship faster with confidence.

What makes Kerno different from other tools

Kerno is purpose built for backend integration testing. It automatically adds new tests as features and edge cases appear, and retires outdated ones as code evolves. This keeps your test suite complete and consistent across the whole engineering team, with no manual effort required.

Kerno also handles the setup and execution. It spins up dependencies, generates and seeds data, runs tests in parallel for quick feedback, and self-heals when changes or failures occur.

By tightening feedback loops and removing test maintenance, it frees engineers to focus on building.

Does Kerno support my backend stack?

Kerno supports the following backend stacks, with the most robust performance for popular languages like Python, JavaScript, Java, and Ruby. Because our AI is trained on public data, its expertise might vary between languages based on their popularity and the public availability of training data.

Does Kerno store my code

Your code's privacy is our top priority. It is never stored on our systems and is permanently deleted the moment your test is complete. During the test, your code runs in a secure, completely isolated environment, making it inaccessible to anyone, including our own team, and have 0 day retention policies with our llm providers (Anthropic).

Does Kerno use my code for training or fine tuning LLMs?

We only use public data to train our system. Your private code is strictly off-limits and will never be used for training purposes.

What there discounts available for startups

Kerno offers free usage for qualified Open Source Projects and a significant discounts for pre-Series A startups. Drop us a note to check your availability.

If you still have questions drop us a note on Slack or contact us