StopLight
The easiest way to test, debug, and share your web APIs
StopLight launched on July 25, 2014 with 94 votes, #353 of 2,263 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 12 years on.
What it does
With Stoplight, you can create OpenAPI descriptions, documentation, and mock servers much faster than other API tools — with no specialized knowledge required — all in one centralized platform.
Built with the modern API workflow in mind, Stoplight brings an intuitive interface and thoughtful features to power your complete API design lifecycle. Modern customers demand intuitive and frictionless digital experiences that you can only achieve with APIs. Stoplight is the tool with patented technology to create high-quality APIs at any scale. Design-first to develop better. Take a proactive approach with your API programs to efficiently create consistent productivity and avoid the underbelly of delays and overages. Connected Software is mandatory for today’s consumers. Avoid disorganized development efforts that cause significant risk and lower return on investment. With visibility…from stoplight.io
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Stoplight – Visual API Tooling2016 · stoplight.io · ▲57With Stoplight, you can create OpenAPI descriptions, documentation, and mock servers much faster than other API tools — with no specialized knowledge required — all in one centralized platform.



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