Keploy
Open-source AI-powered API testing agent for developers
About Keploy
Keploy is an open-source, AI-powered testing platform that automatically generates test cases and mocks from real API traffic. It uses eBPF to capture network-layer traffic and supports unit, integration, and end-to-end testing across multiple languages and frameworks, helping developers achieve high test coverage with minimal manual effort.
Pros & Cons
Pros
- Completely open source and free to use
- Generates tests automatically from real API traffic, saving significant manual effort
- Language-agnostic approach works across multiple tech stacks
- Records databases, queues, and external APIs — not just HTTP endpoints
- Achieves high test coverage (up to 90%) in minutes
- Easy CI/CD integration with popular tools
Cons
- Initial setup and understanding of eBPF concepts can be challenging for new users
- Advanced features have a steeper learning curve
- Enterprise pricing not publicly listed
- Smaller community compared to established testing frameworks
Key Features
AI Test Generation
Automatically generates test cases from real API traffic, OpenAPI specs, Postman collections, or cURL commands
Mock & Stub Generation
Records database queries, external API calls, and streaming events to create realistic mocks and stubs
eBPF Traffic Capture
Uses eBPF to capture traffic at the network layer — completely codeless and language-agnostic
Multi-Language Support
Works with Go, Java, Python, JavaScript, TypeScript, PHP, and more
CI/CD Integration
Run tests locally, in CI pipelines (Jenkins, GitHub Actions), or across Kubernetes clusters
Database Recording
Records Postgres, MySQL, MongoDB queries and replays them as isolated test fixtures
VS Code Extension
Integrates directly into VS Code for seamless developer workflow
90% Coverage in Minutes
Achieves up to 90% code coverage automatically from recorded API interactions
Pricing
- Unlimited test generation
- Mock & stub creation
- CLI access
- CI/CD integration
- Community support
- Browser-based testing
- No installation required
- Quick API test generation
- Everything in Open Source
- Priority support
- Advanced analytics
- Team collaboration
- Everything in Pro
- Dedicated support
- Custom integrations
- SLA guarantees
- On-premise deployment
Best For
API Regression Testing
Record API interactions in staging and replay them as regression tests to catch breaking changes early
Integration Test Automation
Automatically generate integration tests with realistic mocks for databases, queues, and external services
Legacy Codebase Coverage
Add test coverage to existing codebases without writing tests manually by recording real traffic
CI/CD Quality Gates
Run generated test suites in CI pipelines to enforce quality standards before deployment
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Featured In
7 Best Open-Source API Testing Tools for Developer Teams (2026)
Best for teams that need test coverage fast without writing tests manually. Keploy's traffic-recording approach is particularly powerful for legacy APIs and regression testing.
7 Best QA & Testing Tools for Continuous Delivery Pipelines (2026)
Best for backend teams that want to bootstrap API regression tests from real usage, fast.