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
Ten APIs have been added to the ProgrammableWeb directory in categories including Cryptocurrency, Identity, Memes, and DevOps. Highlights include an API for Michigan voting data, an API for Whereby video conferencing, and an API for returning memes. Have a look at what's new.