The ability to mockup complex endpoints is a powerful tool in the creation of discovering interfaces that delight users. Now you can do it in a declarative way.
No. You don't need to setup any piece of infrastructure. Just call the mockup API describing the data you need.
Yes. Just add a parameter "seed" with a given value and we will persist those values for next calls.
Tell us what is getting in the way of your business achieving the business objectives you want.