DynamicApis.com is the new API portal that is moving forward, and they have an awesome integration guide that you can create for free using your Swagger JSON. Check out https://www.dynamicapis.com/app/quickguide . Here is an example of what my friend created. http://bit.ly/1RIVvGN .
They also allow you to create your own API portal, such as GitHub, and allow you to download your Swagger 2.0 documents to create a stunning user interface for your APIs. You can go to their site and see some sample portals to see the interface.
They generate bit.ly links for your integration guides so you can share with people.
Hope this helps!
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