What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
We are interested in this as well. We have seen the forum post on getting form submissions into MySQL via PHP, but this seems like it could be problematic. If the PHP/MySQL server was to go down we would miss form submissions. We would much rather automate some type of "pull" or httpsget process.
The JotForm API makes it possible to connect to your form data without using the JotForm web site.
You can find more about different API http://api.jotform.com/docs/
Also I would recommend visiting developer forum http://developers.jotform.com/ if you any more questions about API.
Hope this will help.