The Belgian midfielder confirmed that he's in talks with the Premier League side over extending his deal and that he is currently representing himself in the negotiations.
De Bruyne told Belgian media: "I am happy in Manchester. I am at a good club. Good owners. Good club. We are chatting a bit, but we are not very far in the negotiations."
Explaining the absence of an agent, the star said: "Now I do it myself. I would like to stay with Man City, so it is not a difficult situation. If I didn’t want to stay, it would take someone to mediate."
De Bruyne, 29 - whose City contract expires in 2023 - was recently hailed by Barcelona legend Xavi as the best midfielder on the planet and suggested that City manager Pep Guardiola has improved his game.
Xavi said: "Kevin de Bruyne, from Manchester City, seems to me of another level, brutal, he is able to make a difference. He is the best midfielder in the world and relatively young.
"Pep is the best manager in the world. He has given a twist to our sport. He is very good for what he transmits and his leadership ability. In addition, the way he convinced us, he is very good."