If you want to display the version of the API as a whole, there is support for this in the Swagger user interface, as indicated here . In addition, this support has evolved into a ServiceStack and will display correctly at the bottom of the screen just like the Swagger Example .
Unfortunately, there is no support yet for accessing the ApiVersion property in your code, as shown here . This property does not appear in ServiceStack versions 3 or 4, or even in the new Model and Property filters in the Swagger function. To access this, a transfer request is required to expose it.
source share