How to add Yandex to FreeOTP?

Question

User identification

The QR code is not accepted by the application, I don’t want to install Yandex.Key so as not to litter the phone

Answer 1

Asked a question to Yandex, received an answer

Hello %username% !
Now this cannot be done. Perhaps in the future it will be possible to use third-party authenticators to generate passwords for Yandex, but for now it is possible to use Yandex.Key to generate codes for other services that use open standards. So you can not add another application, but simply replace it with another.
You can read about why we implemented our two-factor authentication scheme in our article on Habrahabr: habrahabr.ru/company/yandex/blog/249547 .