We are using ARD Studio Tool as well as ARD hub.
1) In ARD Studio Tool, On the bottom-left panel, I am able to view the list of connectors available [ Rally, ARD Hub, HP-ALM and TFS ]
irrespective of the functionalities, will I be able to build a similar connector for an external tool. [Either Git or Solman or some other cloud repos]
Does ARD allow us to configure a connector or plugin in the application?
If so, will I be able to get any documentation or sample code of any existing connector?
2) Does "ARD Studio Tool" (or) "ARD Hub" have any API documentation available to support this integration?
is it restricted to Broadcom?
ARD 3.0.x 3.1.x
Component : CA Agile Requirements Designer
You can review all of the current methods for interaction including import and export from ARD in the below link and information.
Currently, we do not allow for Custom Connectors to be created and integrated ARD Studio or portal.
If you are in need of an additional connector, you can open an enhancement request on our idea wall so that the product management team can consider it for a future release.
Also currently ARD does not have any publicly documented API's that can be utilized for creating/maintaining flows.
This too would be an Enhancement request that should be submitted via our Ideation page for ARD.