Embed Dudamobile API php script.

I am looking for the implementation of the Dudamobile website white label [login to view URL] is written in a provided php scrit and I need it on my html page. The coding will take a visitor or current customer from a website via a 'form' , 'sign up' form or submit button, (with their added name and email address) to my Duda account master dashboard. Or, the first step of implementing the white label setup is to display a preview of all available templates. Then, allow a live preview and option to create a free sub-account and sign into my master account and create from the template. Or, use Duda's api option to import data from an existing URL via a form. Filling in their current URL address that takes them to a preview of their site in mobile view. Then give them the option to create a sub-account to use my master account to give them access to it for modification. I am able to code with html5, css3, javascript and some php; however my understanding of api's is less and I am getting errors when I try to embed and request the duda pre-written php api script. I would like a quote for embedding the php code into a very simple HTML/PHP page or pages and be linked by the required php form/sign up/submit button etc... I do not need a fully developed website, just the API integrated so that when the customer creates an action, via the form or submit button they are taken to the correct address to create a sub-account or view templates etc.. I can provide all the PHP API codes. I have seen that these type of jobs have been requested before and ideally a programmer who already has previous knowledge using the Duda white label API may work? Thankyou