Keploy

About Keploy

Keploy is an AI-powered testing platform designed to revolutionize how developers and engineering teams approach software quality. It's not just another ChatGPT wrapper; it's a comprehensive tool that automates the creation of accurate, reliable test cases and mocks, helping you achieve up to 90% test coverage in minutes, not weeks. Keploy is built for modern developers working with microservices and complex systems who are tired of the tedious, time-consuming process of writing and maintaining tests. Its core value proposition is maximizing test coverage while minimizing manual effort. By using eBPF technology to record real API calls and application behavior, Keploy automatically generates unit, integration, and API tests along with the necessary stubs for dependencies like databases and external services. It supports popular languages like Java, Node.js, Python, and Go, and integrates seamlessly into your existing CI/CD pipelines. With Keploy, you can shift left with confidence, catch bugs early, and accelerate development velocity without sacrificing code quality.

Features of Keploy

AI-Generated Unit Tests

Say goodbye to the pain of manually writing unit tests. Keploy's Unit Testing Agent analyzes your codebase and instantly generates accurate, high-coverage unit tests. These aren't flaky or generic tests; they are context-aware, trained on your specific programming language, and designed to achieve up to 100% unit test coverage. This feature eliminates complex setup work and allows developers to focus on building features while ensuring every code path is verified automatically.

Record & Replay for API and Integration Testing

This is Keploy's superpower. Using eBPF, it non-intrusively records all API calls, database queries, and external HTTP interactions made to your application during normal use or development. It then converts these real traffic patterns into executable integration test cases and realistic data mocks (stubs). You can replay these tests anytime to ensure new code changes don't break existing behavior, effortlessly replicating complex system interactions without needing a full staging environment.

Seamless CI/CD Integration

Keploy is built for the modern DevOps workflow. It integrates directly into your CI/CD pipelines using popular tools like GitHub Actions, GitLab Runners, and Bitbucket Pipelines. Tests generated by Keploy can be triggered automatically on every pull request or build. This provides immediate feedback, catches regressions early, and ensures consistent code quality across all repositories without any additional environment setup or configuration headaches.

Centralized Test Management & Analytics

For teams and enterprises, Keploy offers a centralized dashboard to track testing health across the entire organization. You can visualize real-time metrics like test coverage, failure rates, and quality trends across multiple projects and repositories. Features like smart test deduplication remove redundant tests to keep your suite fast and clean, while global coverage insights give managers a comprehensive view of testing performance and robustness.

Use Cases of Keploy

Accelerating Development Velocity for Agile Teams

Development teams can use Keploy to automatically generate a comprehensive test suite for every new feature or bug fix. Instead of spending hours writing tests, developers can rely on Keploy to create verified tests from their API calls, dramatically reducing cycle time. This allows teams to maintain high speed in agile sprints without compromising on quality, leading to faster releases and more productive developers.

Ensuring Quality in Microservices Architectures

Testing microservices is notoriously difficult due to complex dependencies. Keploy excels here by recording interactions between services and generating integration tests with accurate mocks for databases, gRPC, or HTTP calls. This allows teams to test service boundaries and interactions in isolation, catching integration issues early in the development phase before they reach production, ensuring the entire system works harmoniously.

Automating Test Generation for Legacy Code

Adding tests to an existing, untested legacy codebase is a daunting and expensive task. Keploy can be attached to a running legacy application to record its behavior. It then generates a foundational test suite that reflects the application's actual use, providing immediate test coverage and a safety net for future refactoring or modernization efforts, making the codebase more maintainable and secure.

Enforcing Quality Gates in CI/CD Pipelines

Engineering leads can integrate Keploy into their CI/CD pipeline to act as an automated quality gate. The GitHub PR Test Agent can automatically generate and run unit tests for every new pull request, providing coverage reports and pass/fail status directly in the PR conversation. This ensures that no code merges without adequate test coverage, maintaining high-quality standards across all team contributions automatically.

Frequently Asked Questions

How does Keploy generate tests without writing them?

Keploy uses a smart combination of eBPF technology and AI. eBPF allows it to non-intrusively record all the API calls, network traffic, and database interactions your application makes during normal execution. It captures the requests, responses, and side-effects. Then, its AI models analyze this recorded data to understand the application's behavior and automatically generate structured test cases (with assertions) and corresponding mock data for external dependencies, creating a complete, executable test suite.

What programming languages and frameworks does Keploy support?

Keploy currently offers robust support for four major programming languages: Go, Java, Node.js (JavaScript/TypeScript), and Python. It works with the common testing frameworks in these ecosystems, such as JUnit, PyTest, Jest, and Go's native testing package. It also integrates with a wide range of databases, HTTP clients, and CI/CD platforms, making it versatile for most modern tech stacks.

Is Keploy suitable for both small projects and large enterprises?

Absolutely! Keploy's open-source version is perfect for individual developers and small teams to start automating their tests on any tech stack. For larger organizations, Keploy Enterprise provides advanced features like centralized reporting, cross-repository metrics, test deduplication, dedicated support, and the GitHub PR Agent, which are designed to scale testing efforts across multiple teams and complex codebases while providing managerial insights.

Can I trust the accuracy of AI-generated tests?

Yes, Keploy is designed to generate accurate, non-flaky tests. Unlike generic AI prompts, Keploy's tests are derived directly from your application's recorded behavior, making them highly specific and reliable. They replicate real user scenarios and API calls. The platform is built to ensure these tests are deterministic and maintainable, providing a trustworthy safety net for your code. The "record from real traffic" approach is key to its accuracy.