The Republic of Ireland international has struggled with injuries this season and has constantly been linked with moves away from Goodison Park.
However, after the January transfer window closed, Everton boss Ronald Koeman said that McCarthy was still a big part of his plans, something which pleased the former Wigan man.
“The manager came out and said I’m not for sale and I’m part of his plans,” he said.
“I’m happy enough here. I want to play games and I want to be involved as much as I can and I think that’s within the squad.
“Every other player wants to play as much as they can and I’m no different. Hopefully between now and the end of the season I can play as many games as I can.
“It has been a bit of a stop-start season for me since the manager has come in. I’ve been injured, so I need to try and stay fit and kick on from now until the end of the season and make sure I am causing the boss a headache.”