Generally, a REST API can be accessed from Denodo Virtual Dataport Administration Tool by creating a JSON data source with “HTTP Client” option as Data Route. You can refer to the section [JSON Sources](https://community.denodo.com/docs/html/browse/7.0/vdp/administration/creating_data_sources_and_base_views/json_sources/json_sources) of the Virtual DataPort Administration Guide.
The Solution Manager(SOLMAN) in Denodo will perform the activities listed below and not be able to connect to any external APIs.
1. License Management
The REST API of the Solution Manager defines a set of functions which you can invoke via HTTP protocol (like REST Client). You can refer [here](https://community.denodo.com/docs/html/browse/7.0/solution_manager/administration/appendix/rest_api/rest_api#rest-api) to see the list of supported actions that you can execute using HTTP requests.
Hope this helps!