To enable the API, choose Global Default Settings → Settings, and go to the API section:
Once enabled, logout and log back in again.
Navigate to the Users tab and select the user who will access the API, click on the "Generate API token" button:
An authentication token will be displayed on the form, which you can then copy and use when authenticating to the API:
Operations performed through the API are linked to individual user accounts on IriusRisk.
The complete API specification can be found on SwaggerHub: https://app.swaggerhub.com/api/continuumsecurity/IriusRisk/1