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Keploy

AI Testing Agent for API, Integration, and Unit Tests

2026-03-18

Product Introduction

  1. Overview: Keploy is an Open Source AI-powered testing agent designed to automate the creation of API tests, integration tests, and unit tests. It functions by capturing real-world traffic to generate stable test cases and mocks.
  2. Value: It allows engineering teams to accelerate their CI/CD pipelines by achieving up to 90% code coverage in minutes rather than weeks, eliminating the manual overhead of writing test scripts and mocking dependencies.

Main Features

  1. Traffic Record and Replay: Keploy intercepts real API traffic (requests and responses) to automatically generate test cases. These can be replayed in an isolated sandbox environment to ensure deterministic results.
  2. Automatic Mocking/Stubbing: The platform intelligently identifies and mocks external dependencies like databases (PostgreSQL, MongoDB, Redis) and third-party APIs (gRPC, HTTP), ensuring tests run without needing the actual infrastructure.
  3. AI-Powered Unit Test Generation: Utilizing LLMs, Keploy analyzes codebases to produce high-quality unit tests and coverage reports directly within the developer's IDE, such as VS Code.

Problems Solved

  1. Challenge: Manually writing and maintaining integration tests is time-consuming and often results in flaky tests due to changing data environments.
  2. Audience: DevOps engineers, backend developers, and QA automation specialists working on microservices and distributed systems.
  3. Scenario: A developer needs to ensure a new code change doesn't break existing API endpoints. Keploy records actual user traffic from a staging environment and replays it against the new code to detect regressions instantly.

Unique Advantages

  1. Vs Competitors: Unlike traditional tools like Postman or Selenium that require manual input, Keploy is non-intrusive and uses actual application behavior to build its test suite.
  2. Innovation: It offers a unique 'zero-code' approach to integration testing, leveraging eBPF and service-level interception to capture data without requiring heavy SDK instrumentation.

Frequently Asked Questions (FAQ)

  1. How does Keploy help with test coverage? Keploy achieves 90% test coverage by automatically converting real API interactions into replayable test cases, covering edge cases often missed by manual testing.
  2. Does Keploy require code changes to work? No, Keploy typically operates as a CLI tool or VS Code extension that intercepts network calls, allowing for automated testing without modifying your application logic.
  3. Is Keploy compatible with CI/CD tools? Yes, Keploy integrates seamlessly with GitHub Actions, Jenkins, and GitLab CI, allowing tests to run automatically during every pull request to prevent regressions.

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