Enable the Request Access Button to Display
This topic requires the Exchange Administrator role.
Users specify what applications can have access to an API by clicking the
Request Access button 
.
Exchange Administrators see the Request Access in the More Options menu 
.
However, just creating an API asset does not cause the Request Access button to display. You have to configure the asset first:
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In API Manager, click Manage API > Manage API from Exchange to open the API.
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Use the URL of your API asset in Exchange as the Implementation URI in API Manager.
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After opening your API in API Manager, you can view the API Instance ID value as well as other useful information.
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To return to Exchange, click View API in Exchange.
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In Exchange, the Request Access button appears in the three dot menu.
Note: in API Manager, the API’s Status is marked as Unregistered. To register the API, deploy the API to Runtime Manager; however, changing the API Status to Registered is not required for the API to be usable in Exchange.
Request Access Display Criteria
A public portal displays the Request Access button only after these steps:
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Publish a REST, SOAP, or HTTP API in Exchange.
A REST API can be either an OAS or RAML API specification.
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Create an instance of the API in API Manager.
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Set the instance as public in API Instances.
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If the instance’s URL is not present, set the instance’s URL in API Instances.
If the instance is private, then the portal displays the Request Access button only to logged-in users.
If the instance is public, then the portal displays the Request Access button to all users. If a logged-out user requests access, then Exchange prompts them to log in.