Working in mission-critical enterprise software — systems processing millions of dollars a day — resiliency isn’t a nice-to-have. It’s everything. As our systems evolved toward a microservices architecture, we invested heavily in end-to-end automated tests to make sure everything worked together. The problem? Those tests almost always assumed perfect conditions. In reality, production is messy: Third-party APIs slow down Networks fail Rate limits kick in Responses change unexpectedly Simulating a single response or validating a happy-path request is not a real test of system resilience - That gap is exactly why ChaosMockApi was created. ChaosMockApi lets you go beyond basic mocking by creating a pipeline of requests and responses, where each step can introduce controlled chaos. With ChaosMockApi, you can: Define sequential responses for the same endpoint Inject latency, failures, throttling, and dropped connections Mix predictable behavior with unpredictable conditions Proxy real requests to third-party APIs while still applying chaos This makes it possible to test retry logic, fallbacks, circuit breakers, and error handling the same way they behave in production — without waiting for production to fail. If you care about building systems that survive the real world, not just pass tests, ChaosMockApi was built for you.

ChaosMockApi

Mock APIs & Chaos Testing for Resilient Systems

Mock APIs & Chaos Testing for Resilient Systems