ChaosMockApi
Mock APIs & Chaos Testing for Resilient Systems
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Chaos Mock API

ChaosMockApi - Mock APIs & Chaos Testing for Resilient Systems

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ChaosMockApi enables chaos testing and chaos engineering for APIs by simulating failures, latency, and outages. Build resilient systems with realistic mock APIs. Traditional mocks give you one predictable response, but real production environments are unpredictable. That’s why we built ChaosMockApi — it combines classic API mocking with chaos engineering. You can create a pipeline of responses and simulate real-world failures (latency, errors, rate limits, and dropped connections.)

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Chaos Mock API
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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.