Though you don’t see me talking much about the M3 REST services (mainly because the meta-data was broken when I first went to play with them), they are there and they are very handy and I actually used them with a 3PL application I developed for my old employer.
I have a customer embarking upon an Upgrade-X project, and in the process of validating I noticed that the M3-API-WS was missing
It turns out that it has moved in to the BE
But that’s not the kewl thing. If we go to its Grid Management Pages -> API Repository we get descriptions!
And if we click on a MI program it gets even better
…
And still, more details :-O
Credit to the developers for adding this information!
I don’t know how many hours in frustration I’ve spent dealing with the APIs.
Potato IT 
This information has always been part of the M3 API Toolkit. Both as a CGI web application and a Windows HTML Help file. But as of BE 13.2 it is also available in the server view / management pages – which makes it much easier to find 🙂
My bad. I was pretty sure the last time I looked at the API toolkit (and it’s been a very long time) the information was very basic but may not have looked all that hard.
I need to pay more attention, especially when there are updates 😉
The easier the information is to find the better and we all know where the grid is 🙂