Primedice and Stake removed the API-Key from their site cause of "security reasons" so i guess some ppl tried to exploit them.
But the good news - you can still use Primedice and Stake and still see your API-Key.
Here are the steps:
1.) Log on Stake
2.) Press F12
3.) At the Top - search the tab "Application"
4.) Now go to the left side tab: "Storage" -> "Local Storage" -> "http://www.stake.com
5.) on the right side there now two new tabs, "Key" and "Value"
6.) search at the "Key" tab for "session"
7.) now go to the right side of "sessions" and double click the api and copy it.
8.) remove the questions marks from the api key and Voila - thats your API
it seems complicated but its not.
And - in the past you got a new api from the site every single logon.
This key seems permanent and doesnt change - good news in my opinion
If you still have problems just let a message here and i do some more specific explanation and screenshots ;-))
hope this helps your guys, totally works for me