Hoverfly
A lightweight open-source API simulation tool for creating realistic mocks of API dependencies during development and testing.
What is Hoverfly?
Hoverfly is a lightweight, open-source API simulation tool that allows developers and testers to create realistic mock versions of external APIs. It solves the problem of depending on slow, flaky, or unavailable services during development and testing by providing reusable, configurable simulations. This enables teams to work independently of live dependencies and test edge cases like network failures or latency.
Developers, QA engineers, and DevOps teams who need to mock or simulate external API dependencies for development, integration testing, or performance testing.
Developers choose Hoverfly for its lightweight design, high performance, and flexibility—it supports extensibility via any programming language, offers multiple interfaces (CLI, REST API, Java bindings), and allows easy sharing and versioning of simulations.
Overview
Lightweight service virtualization/ API simulation / API mocking tool for developers and testers
Use Cases
Best For
- Mocking external APIs during frontend or backend development
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