sms-activate

Go to the website first https://5sim.net/ and Sign in / register

After login move your mouse to the profile symbol and click on "settings"

In settings just click on "Generate new key" and you will receive an email with a link

Go into your mailbox, click on the newset mail from SMS Activate and click on the orange button "Get API-Key"

Now you will see your API Key

Now you only have to iput it into the toolbox