Page Comparison

Let's take a look at some concepts and terminology that you need to know in order to follow the use cases.

...

• Public: The API is visible to all users (registered and anonymous), and can be advertised in multiple stores (central and non-WSO2 stores).

• Restricted by Roles: The API is visible to it's tenant domain and only to the user roles that you specify.

• Visible to my domain: The API is visible to all users who are registered to the API's tenant domain. This option is available only in a multi-tenanted environment. It's not applicable when there is only one active tenant (super tenant) in the system.
  

...

Cross-origin resource sharing  ( CORS ) is a mechanism that allows restricted resources (e.g., fonts, JavaScript) of a Web page to be requested from another domain outside the domain from which the resource originated.

The Swagger API Console that is integrated in the API Manager runs as a JavaScript client in the API Store and makes calls from the Store to the API Gateway. Therefore, if you have the API Store and Gateway running on different ports, enable CORS between them. 

...

<handlers>
   <handler class="org.wso2.carbon.apimgt.gateway.handlers.security.CORSRequestHandler"/>
</handlers>

...

OAuth scopes

Scopes enable fine-grained access control to API resources based on user roles. You define scopes to an API's resources. When a user invokes the API, his/her OAuth 2 bearer token cannot grant access to any API resource beyond its associated scopes.

...