fcForms comes with some sample forms. The form presentation file needs to be modified.
See The Form Presentation File (forms.json) for more detail on the format of this file.
By default, the forms are available to "All Users" . You may wish to first test this out by changing the values in the "Allowed Groups" key-value pair to be only available to a test group until you have modified or added your own forms.
Please review the section on Exposed Groups in The Form Presentation File (forms.json) section to learn how to expose a group to an external application.