Toure hopes his experience can help to replace the qualities lost by the retirement of Jamie Carragher.
"Of course my experience is going to be important. I know Jamie Carragher was a really important player for this football club," the Ivory Coast international told liverpoolfc.com.
"He's retired now and Liverpool had to look for somebody who can replace him. I'm the one and it's a big honour, personally.
"To be chosen to replace Jamie Carragher is unbelievable because he has been a fantastic player for this football club, he was a great leader. What I will try to do is not going to be easy, but I will do my best.
"Coming to Liverpool was really important. At City in the last two years, I haven't played a lot of games.
"Being there four years, two were very good and the last two years were much more difficult. But I'm joining one of the best clubs in the Premier League."