Expanding the Number of SEO Page Rankings

BACKGROUND: The SEO API offers only four major page ranking on two of which my website are not even included. Unfortunately, there are many other sources of page ranking that I would truly like to post. Neither Google, nor Bing are my favorite search engines.

QUESTION: Where does one find the PHP that generates page rankings. I would like to upgrade it to include the data from other search engines that I more strongly approve.

Roddy