Every Scriptcase installation has a registration serial, even in trial installations.
In this article, see where to locate your serial within Scriptcase.
1 - Login to your Scriptcase with your username.
In this example we are using the default installation user admin / admin
2 - After the link, in the upper right corner of your screen, click on your username, as in the image below.
3 - A menu will open with some information about your license.
Next to the exit button, it will be possible to see the SERIAL field, which is being used by Scriptcase.
In the image below we can see a serial trial