Boomi Cloud API Management Developer Blog

Hot from the desk of "should have had this awhile ago", we added a small feature last night to pass through the inbound host header to your API hosts.  Previously, if you wanted this value, you could only toggle on a feature to pass it through a custom Mashery header of x-Mashery-Host.  While that feature remains in place, we also added the ability to simply pass it through as the basic http host header you'll receive.  

You can toggle either of these features on the API Settings->Endpoints->Properties page.  There you will find options for both.  Set either or both on, and the inbound host header is passed into the header attribute you have requested.