How to get a Author Details from an API?

Former Member
Former Member

How to get an Author details under one group in API like (blog, forum) without using $core_v2_user. 

Ex: I want to list a Authors of a group for a $core_v2_taggedContent.List API.

For now am passing CreatedByUserId from core_v2_taggedContent output to core_v2_user API to get details of Author.

This makes my application processing time higher is there any better way to retrieve in one API call.