Iframe free use

Chikero

Hi!

I´m studiying the possibility of include your widget into a web application, but i´m not shure if it´s free or not.

According to other topics i´ve read and what i can see here

seems free to include it, but when i read the API documentation, i see that the model used for the iframe is only available in the API paid version.

So, it´s free? Depends on the parametrization of the 'src' label of the iframe?

Thank you very much!