Is there a way to pass value to the forms created in OFS through APIs?

Summary:

I have a form created in OFS and we want to pass the values in that form through VBCS using the API call

Content (required):

We already have a form in VBCS too and after the user fills that form and clicks on submit, we would like to pass VBCS form data to the OFS form using an API call.

I have looked through the documentation but I could only find a PUT call request through which we can pass the "default value" and not just the value for the field.

Version (include the version you are using, if applicable):