The following page lists the available REST APIs:

https://cadsrapi-dev.cancer.gov/NCIAPIPortal/listAPIs

For example, the "Get Form Data with Collections" API accepts a Form ID and Protocol ID as input and returns all the components of the form: Form information, Modules, Questions, and Valid Values, including all instructions for each section of the form.

Example page 

https://cadsrapi-dev.cancer.gov/caDSR/

(TBD: Is there someone who can add an example URL for example 14, so I can resolve the TBD in caDSR II - caDSR APIs?)

Data Element Example

Forms Example

Forms Example with Protocol

REST API Example