Where can you find cheats for Kingdoms at War

Short answer: There are none.

Long answer: Theoretically it may be possible to cheat/hack 'Kingdoms at War', but the majority of the important data for this game is stored serverside. This means that altering gold, nobility, soldiers, etc. would likely require methods that could get someone in trouble for sharing it openly and it would also bring attention to specific loopholes/exploits for fixing by the game Devs.