Yes, Form Builder, in Orbeon Forms, allows you to create a page with form fields, use the provided values to call a REST/CRUD API, and show the result on that page. You can try that out for yourself on demo.orbeon.com, or download the software and run it locally.
There is an open source (LGPL) Community Edition, but the services & actions feature you need for this is only available in the Professional Edition. This being said, if you just need this for your own local testing, you can get a trial license (automatic process, valid 3 months, no limit on number of licenses you get), and have fun with it.
Bias: I'm one of the Orbeon Forms developers ;). ‑Alex
There is an open source (LGPL) Community Edition, but the services & actions feature you need for this is only available in the Professional Edition. This being said, if you just need this for your own local testing, you can get a trial license (automatic process, valid 3 months, no limit on number of licenses you get), and have fun with it.
Bias: I'm one of the Orbeon Forms developers ;). ‑Alex