I would like to know if there is any way we can get the rating/difficulty of the problems using Codeforces API? Obviously we can use user status to get to the problems a particular user solved. But I would like that to the difficulty of each problem so that I can actually produce a histogram.

I think the API has not been updated since the new edition of rating/difficulty in problemset. It would be awesome if you can point me to the right direction!