. You can buy a monkey at a variety of pet stores or breeders. Make sure to do your research carefully to ensure that you are getting a healthy animal and if possible, always opt for a captive-bred monkey over a wild-caught one.
Talk to the breeder/pet store to find out about the health and behavioral history of the monkey, and find out what is involved in providing proper care. If you decide to buy, make sure you check out the local laws on keeping primates as pets as it is not legal in many places.