[galaxy-dev] tool form in remote mode

Hi, Galaxy Developers, I'm trying to integrate galaxy into another system and using its remote mode. While I still want to use the html of the tool form generated by galaxy. I know that I cannot get the html through the API. So I want to write some code to call the tool package code directly. But I can't find the documentation about the tool package and don't know where to start with. Can any one help me? Any help will be appreciated! Best, Yanbo