Keploy

What It Does

Keploy is an AI-native verification layer for engineering teams that captures real production API traffic, database queries, and dependency behavior to create comprehensive automated tests. Using eBPF technology with zero code changes required, Keploy builds a Digital Twin of your production environment that can be replayed in CI/CD pipelines as deterministic regression tests, auto-generated mocks, and production-like sandboxes.

Who It's For

Keploy is designed for software engineering teams working with APIs and microservices who need to verify that every code change—whether written by humans or AI—works correctly before deployment. It supports developers across all major languages including Go, Java, Python, Node.js, Rust, PHP, and Ruby, making it framework-agnostic and universally applicable.

Key Features & Capabilities

• Traffic Recording: Captures live API traffic and dependency behavior with eBPF, requiring no code instrumentation
• AI Test Generation: Automatically generates regression tests from real application behavior
• Auto-Generated Mocks: Creates realistic dependency sandboxes and mocks based on production data
• API & Schema Coverage: Provides comprehensive coverage analysis and deduplication
• CI/CD Integration: Replays tests in isolated sandboxes locally, in continuous integration, or across Kubernetes
• Contract Testing: Verifies API contracts against real production behavior

Typical Workflows

Development teams use Keploy to record production traffic during normal operations, which automatically generates test suites that reflect real-world usage patterns. These tests run in CI pipelines to catch regressions before deployment, while the generated mocks enable fast local development without requiring access to production dependencies. The Digital Twin sandbox provides a safe environment to test changes against realistic production scenarios.

What Sets It Apart

Keploy is open source (Apache 2.0) with over 18,000 GitHub stars and a thriving community of 1,000+ contributors. Unlike traditional testing tools that require manual test writing, Keploy automatically creates comprehensive test coverage from actual production behavior. The platform has already generated over 300 million mocks and processed 1.2 million tests, demonstrating proven scale and reliability.