If you want to visit Monaco, you need to see if you need to obtain a Monaco visa to enter. However, the Republic of Monaco does not have a visa system, so to visit Monaco, you need to apply for a France visa at the nearest embassy/consulate of France.
Anyone who is at least 16 years of age and wishes to reside in Monaco for more than three months in a year, or set up home in the Principality, must apply for a residence permit from the Monegasques authorities.
Anyone who is at least 16 years of age and wishes to reside in Monaco for more than three months in a year, or set up home in the Principality, must apply for a residence permit from the Monegasque authorities.