Okta is about Identity as a service (IDaaS). The API provides REST functionalities that aim to facilitate identity creation, mobile management, and secure enterprise. In addition to the API, Okta offers an SDK in .NET language with guides to create a client, create a client against another environment, and create client with a proxy. It also offers CRUD operations, enumeration, and custom properties. See the example of Okta API in a music store https://github.com/okta/okta-music-store
Being able to store and manage massive amounts of Big Data is one thing; finding a way to make it accessible to developers is quite another. Major vendors such as SAP and IBM are in a race to create a framework that will make it simpler for developers to invoke a layer of services that will allow developers to access data regardless of what format it is stored in without having to, for example, learn arcane interfaces such as MapReduce.