i've found a solution, but it's not an API call listed on that page.
It's another address where i can get all the market info like number of decimal places, and some more info. I will try to use that function because it seems that it's what i need
If you believe you can do it this way, then go on!
What is important to me (and I believe many CAT users would agree to this) is to have a fast and reliable application doing the job without causing headaches.
Just try what you can achieve with the API you found and if there are problems, it is better to let them know. Maybe they will realize the problem and make the changes we need.