On a related note, <a href="http:&#x2F;&#x2F;editor.swagger.io" rel="nofollow">http:&#x2F;&#x2F;editor.swagger.io</a> &amp; <a href="http:&#x2F;&#x2F;petstore.swagger.io" rel="nofollow">http:&#x2F;&#x2F;petstore.swagger.io</a> provide a similar UI for exploring REST APIs which have an OpenAPI (formerly known as Swagger) specification.