OpsCenter API reference for developers 

OpsCenter RESTful API provides programmatic management for monitoring and managing DataStax Enterprise clusters.

The OpsCenter API facilitates the development of websites and programs to retrieve data and perform DataStax Enterprise administrative actions. The OpsCenter API provides the ability to make RESTful requests for programmatically performing the same set of operations as the OpsCenter GUI. As of OpsCenter version 6.0 and later, the OpsCenter API reference includes the Lifecycle Manager API for the LCM GUI.

As of OpsCenter version 6.1 and later, there is an API reference for the DataStax Agent. See Enable the Swagger UI.