There should be a fee, but a fee equal to how much storage and access cost, so a very small one. If you put no fee, some big actors will create non optimize cr

There should be a fee, but a fee equal to how much storage and access cost, so a very small one. If you put no fee, some big actors will create non optimize crawlers and call the service in a loop, wasting your tax money. A small fee means people will take care of only get exactly the data they need, cache what they need to cache, and refresh only if they really need to, and what they really need to. Otherwise, it's the tragedy of the common.