I don't know where to ask this question.
Could you please suggest me the place where I can find documentation about Integrity and about Integrity REST API.
Thanks in advance!
Sergei, Integrity has it's own Community section. Also, if you have access to PTC support, click here for the central Help Center page, and Integrity is available under different sections, version-wise.
I just found this article:
Integrity LM: Meeting Minutes utilizing RESTful in... - PTC User Community
Retrieving data ...