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The OpenAPI Specification is a vendor-neutral, open-source API description that was originally based on the Swagger Specification, donated by SmartBear Software. The API community – architects, vendors, and any organization leveraging the API economy – is welcome to participate in the evolution of the OpenAPI Specification (OAS).

Evolve the Spec

Not sure how to get started? Read how to participate here

Leverage the Spec

There are no membership, or fees required to leverage the OpenAPI Specification.

  • Find the latest version on our GitHub repo here, and find all versions here.
  • Already leveraging the OpenAPI Spec? We want to hear about! Tweet your implementation tagged with @OpenApiSpec and show off your work.

Learn More About the Spec

Whether you are just entering the API economy, or a longtime standard bearer. There is also something new to learn about the OAS

Got something to say? Contact us at info@openapis.org about presenting or hosting a Meetup in your area.