Monaco, one of the craftiest and most exciting players on tour, will be hoping to make a huge impression in his first appearance in Kuala Lumpur.
Spain's World No 5 David Ferrer, Japan's Asian No 1 Kei Nishikori and Ukraine's World No 17 Alexandr Dolgopolov are the other confirmed players.
Monaco moved up into the top 10 for the first time after winning his third title of the season in Hamburg.
"It's amazing, it's a dream come true to win my third title. It was a big goal. We had pre-season when we were practising very hard," said Monaco in a statement.
Dolgopolov, who made the semi-finals in Umag, Croatia recently, is excited to be returning to KL.
"I have fond memories of my last visit to KL. I felt very comfortable and welcomed in Malaysia and we are excited to return and play the highest quality tennis. I hope to be a champion in this event," said Dolgopolov.
Tipsarevic will not defend his title due to prior commitments. The Serb will instead play in the Thailand Open in Bangkok. -NST
