Cerascreen offers an at-home antibody test. You use the kit you buy to draw a small blood sample at home and mail it to them. They use the ELISA method to test the blood for IgG antibodies and show you the result on a webpage. Not sure if this is available outside Germany, though maybe a different company offers something like this where you live.
Abbott also produces a blood test for IgG/IgM antibodies, except that it comes with a small test cassette that gives you the result directly, without sending it to a lab. Maybe importing this (or something similar) is an option for you.
Cerascreen offers an at-home antibody test. You use the kit you buy to draw a small blood sample at home and mail it to them. They use the ELISA method to test the blood for IgG antibodies and show you the result on a webpage. Not sure if this is available outside Germany, though maybe a different company offers something like this where you live.
Abbott also produces a blood test for IgG/IgM antibodies, except that it comes with a small test cassette that gives you the result directly, without sending it to a lab. Maybe importing this (or something similar) is an option for you.