You can use
the timeseries endpoint of the Dynatrace API, particularly GET data points of a
metric or POST data points of a metric call. It can provide you captured data
out the descriptions of these calls here:
Hope it helps.
I looked into the link and found it helpful but didn't exactly found what I want.
I want 3rd party or external resources that being used in the project.
3rd party resources are listed in my DT SaaS account under Application>>My Java App>>Resources>>3rd party resources.