Runtime APIs and Services

This section covers the available APIs used to interact with components at runtime.

Workflow	Describes the available Services and Assemblies that can be used to interact with and manage Workflows at runtime
SmartObjects	Describes the available Services and Assemblies that can be used to interact with and manage SmartObjects at runtime
Server	Describes assemblies and services used to interact with a Server.

Nintex K2 client API .DLLs that you reference (such as HostClientApi.dll, SmartObject.Client.dll and the Workflow client API), are thread safe.
If you open a connection with the API, you should close and dispose of the connection object.

Due to increased security of the SmartForms Designer and Runtime sites, we recommend using Forms or Windows Authentication in IIS, or OAuth when using the K2 API. Basic Authentication may cause authentication errors and authentication "Replay Attacks" when using the K2 API.

Disable Basic Authentication in the IIS K2API and enable Forms or Windows Authentication. Perform an IIS reset.
Use OAuth instead of Basic Authentication.