There are two ways to publish API, one is publishing in Portal and another is from Gateway.
I want to publish from Gateway so I need to install the Gateway setup script so that the "Set as Portal Managed Service" assertion will appear in policy manger. I can find the setup script Gateway_Setup_v3.5_with_9.2 for Gateway9.2 and Portal 3.5. Where can I get the script for Gateway 9.2 and Portal 4.2? Or can we use Gateway_Setup_v3.5_with_9.2.zip for Portal 4.2?