I was trying to figure out way to get access to purepath or any other information, useful for RCA, by API. Couldn't find anything, and more than that, find some older questions here about similar things. Could somebody clarify that its impossible by now using Dynatrace Oneagent (either SaaS or Managed).
Data like PurePaths are available ONLY in dynatrace itself. There is no option for exposing it via any API. The same it was in Appmon so I don't think there are any plans for such functionality in the future.