Hi Dmitry.
Use something like: https://app2.clarizen.com/Clarizen/View?type=Task&id=9c56bc45-6b04-42fb-980e-0adcca0ae1c8
with the API type name and id.
Also check the AppLoginMessage if you want to skip logging in. This gives you a temporary URL you can combine with the relevant part of the above.
Hope this helps
Ophir