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Dev tools · February 16, 2016

StopLight

Mock, document, and test your way to API nirvana.

StopLight launched on February 16, 2016 with 137 votes, #248 of 4,386 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 10 years on.

Visit stoplight.io ↗StopLight alternativestop 6% of February 2016

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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