OTP/MFA Code Macros

Wondering if anyone has figured out a way to get one-time password codes generation into macros.

My work system is hard-locked down and cannot have password managers or anything installed. But I’d like to be able to generate OTP codes (a set of 3 sites usually) with my UHK macros instead of having to use my cell phone or wait for emails. It’d be great to be able to copy the code string (the alternate to the QR code) into a macro and it would spit out the 6-digit code.

Hi!

What does it actually mean to generate OTPs?