The Complete OpenAPI Specification Toolkit

Create OpenAPI Specifications (formerly known as Swagger) 10x faster with no specialized knowledge required. Combine OpenAPI documents with Markdown to create beautiful documentation for internal and external stakeholders. Instantly turn any OpenAPI document into a mock server. Leverage contract testing to ensure that your Single Source of Truth - OpenAPI Specification - accurately describe your APIs.

Thousands of companies use Stoplight to streamline

Deutsche Bank

Stoplight is a Gartner Cool Vendor

Stoplight is cool because it enables enterprises to scale API Design. Learn more about collaborative API Design in this Gartner report.

I feel like Stoplight has the potential to shift the landscape pretty significantly, something I haven't seen any API service provider do in a while.

Kin Lane, API Evangelist

When it comes to specification markup and documentation, the order of magnitude has gone from days to hours.

Carlos Lozano , Senior Enterprise Architect, GFT Group

Stoplight has been a serious game changer for JumpCloud’s API development! We love all the rich design, documentation and testing features, which has enabled us to design awesome APIs for our customers.

John Vajda, Product Manager, JumpCloud

Stoplight provides a centralized, testable and reliable source for our APIs.

Gil Barbara, Frontend Engineer, AMARO

Getting started is easy. Be up and running in minutes.