Como faço para criar o formulário uma entrada valida ?

EX.  digito uma numero se ele estiver certo abre o formulario 

tem como fazer

Unfortunately, we do not have a feature that will make your form password protected.

However, there is a workaround that you can do using conditions, a field where the code should be entered, and a form collapse located at the top of the entire form.

Basically, what you need to do is explained in this guide — Show-or-Hide-Multiple-Fields-at-Once-Using-the-Section-Collapse-Field

Here's a sample form — https://form.jotform.com/73615061554959

In that form, you need to use the code — 1332984 to view the rest of the form.

You can also clone the form in your account by following this guide — https://www.jotform.com/help/42-How-to-Clone-an-Existing-Form-from-a-URL

I hope this helps. If you have other questions or concerns, please feel free to contact us again anytime.