No. COVID-19 vaccines do not contain microchips. Vaccines are developed to fight against disease and are not administered to track your movement. Vaccines work by stimulating your immune system to produce antibodies, exactly like it would if you were exposed to the disease. After getting vaccinated, you develop immunity to that disease, without having to get the disease first.
Learn more about the ingredients in the COVID-19 vaccinations authorized for use in the United States.
Learn more about how mRNA COVID-19 vaccines work.