I've a custom web forms definition interface where I user can define bespoke web forms and those webforms are then rendered on the other part of the my web app. It works well as I can render and submit my forms dynamically.

However I have a scenario where there will be different 3rd party apps should be interacting with my custom forms. So the quesion arises how can I have my client side web forms and the fields within to work with the 3rd party interfaces on the fly. Any idea in that regard or best practice will be highly appreciated.