Kerno

Kerno is an advanced AI-powered co-pilot designed specifically for backend developers, revolutionizing the way integration tests are created, executed, and maintained. It deeply understands your code, dependencies, and business logic to deliver reliable, high-quality testing at scale. By leveraging cutting-edge Graph and Kernel technology, Kerno aims to empower developers to build with AI without compromising code quality or performance. It provides full context by mapping every piece of code, dependency, and business logic, supporting over 10 backend languages and 30+ dependencies.

How to use Kerno

Developers integrate Kerno into their favorite IDE. Kerno then autonomously analyzes the codebase, generates comprehensive integration tests, and executes them in isolated environments. When code changes are made, Kerno automatically updates and re-runs tests, providing instant feedback on behavioral and logical changes. Users can run tests with a single click without manually spinning up test environments or complex dependencies. Kerno compiles all changes across edge cases into a human-readable file for quick review in the IDE, streamlining the pull request process. Furthermore, Kerno can hand off test results and deep context to your AI agent for rapid code fixes.

Core Features of Kerno

• Full Contextual Understanding: Creates a detailed graph mapping code, dependencies, and business logic.
• Deep Test Coverage: AI engine generates exhaustive test suites covering user flows and edge cases.
• Autonomous Testing: Automatically spins up real dependencies (30+ supported), runs, and updates tests, detecting behavioral and logical changes.
• Instant Results & Feedback: Compiles changes into human-readable files for IDE review; provides immediate feedback on uncommitted changes (staged and unstaged commits).
• One-Click Testing: Simplifies test execution without manual environment setup or data mocking.
• AI-Assisted Fixes: Provides test results and context to AI agents for rapid code correction.
• Automated Environment Setup: Automatically provisions databases (e.g., Postgres, Redis) and other dependencies through Docker Compose.
• Automated Test Maintenance: Tracks API, schema, and config changes to self-heal or add/remove affected tests.
• Change Intelligence: Compares baseline and head commits to identify regressions.
• Supports 10+ Backend Languages.

Use Cases for Kerno

Kerno is ideal for automating integration testing for backend services, APIs, and microservices. It's crucial for preventing regressions by automatically catching breaking changes before they reach production, thereby accelerating development cycles and reducing manual testing effort. Development teams can use Kerno to ensure high code quality and reliability, streamline the onboarding process for new developers by providing a robust testing framework, and safely refactor legacy systems with confidence.

Advantages of Kerno

Kerno offers significant advantages, including substantial time and cost savings by reducing manual test generation and maintenance, potentially saving up to $900 per developer per month compared to traditional manual processes. It enhances code quality and reliability through exhaustive, autonomous testing that covers deep edge cases. Developers benefit from faster feedback loops with instant results directly within their IDE, and simplified test environment management due to automated dependency provisioning. Kerno reduces the developer burden, freeing them to focus on core development tasks, and integrates seamlessly into existing IDE workflows. Its architecture is designed for scalability, handling complex codebases and large-scale testing needs efficiently.

Pricing and Plans

Kerno offers two main pricing plans:

• PRO: Priced at $30 per developer per month. This plan includes unlimited repositories, unlimited users, unlimited test runs, and test coverage insights. A free trial is available to get started.
• ENTERPRISE: Custom pricing is available for enterprise needs. This plan includes all features of the Pro plan, plus Single Sign-On (SSO)/SAML, dedicated Slack support, a self-hosting option, and custom invoicing. Interested parties can contact a founder for a custom quote.