Google Authenticator available as a public service?

Question

Is there public API for using the Google Authenticator (two factor authentication) on self-running (e.g. LAMP stack) web apps?

Answer 1

You can use my solution, posted as the answer to my question (there is full Python code and explanation):

Google Authenticator implementation in Python

It is rather easy to implement it in PHP or Perl, I think. If you have any problems with this, please let me know.

I have also posted my code on GitHub as Python module.