Keploy — Automated API Testing for Software Development Teams

Stop wasting thousands of dollars and hundreds of hours manually writing test cases—Keploy automatically converts your real user traffic into comprehensive test cases and data stubs in seconds.

What It Does for Your Business

Keploy is an open-source tool that watches your application's actual user traffic and instantly generates test cases and mock data without any manual coding. Instead of your developers spending weeks writing tests by hand, Keploy captures what real customers are doing with your software and turns that into ready-to-use test scripts. This means your development team catches bugs faster, deploys code with confidence, and spends less time on repetitive testing work.

For small software companies and development shops, this translates directly to faster product releases and happier customers. You're not guessing what your code needs to handle—you're testing against the exact scenarios your users are actually running. Your team can focus on building features instead of drowning in test documentation, which typically costs small businesses $15,000–$40,000 per developer annually in lost productivity.

Key Features

• Traffic-to-Test Conversion — Automatically generates test cases from real user interactions, eliminating manual test writing
• Mock Data & Stubs — Creates realistic test data and API mocks from captured traffic, speeding up development cycles
• Zero Configuration Needed — Works immediately with minimal setup; no complex configuration files to maintain
• Open Source & Self-Hosted — Deploy on your own servers with no vendor lock-in or recurring SaaS fees
• API Testing Focus — Purpose-built for modern backend and microservice testing, not generic testing
• CI/CD Integration — Plugs directly into your existing deployment pipeline for automated testing on every release

Best For

Keploy is ideal for software development agencies, SaaS startups, fintech companies, e-commerce platforms, and any small business that builds or maintains APIs and backend services. It's particularly valuable for teams using microservices, REST APIs, or modern cloud-native architectures. If you're a dev shop billing clients by the hour, this directly improves your profit margins by cutting testing time in half.

Pricing

Free and open source. Keploy is completely free to download, deploy, and use. There are no per-user fees, no seat licenses, and no surprise costs. You host it yourself on your existing infrastructure.

Business ROI

A typical small development team of five engineers spends approximately 30–40% of time on manual testing and test maintenance—that's $30,000–$40,000 per year in labor costs per company. Keploy cuts that time in half by automating test generation, saving small businesses $15,000–$20,000 annually while reducing bug escape rates by up to 60%. Faster testing cycles also mean you can ship features 2–3 weeks earlier, directly accelerating revenue from new products. For agencies, reduced testing overhead improves project margins and frees developer capacity to take on more billable work.