AP class?

Can you take AP classes after graduating high school?

Where would you take them and why would you do so?

I didn’t know if they were offered online or something.
I want to take them because a program I want to be apart of needs two AP classes or a CBinternational diploma.

Check with the program and see what they will accept.

What program is that?
AP exams see in May and you need to be in high school AFAIK.
Does the program have alternative exams you can provide the results of?