Burp Extenstion to parse JavaScript WebService Proxies and create sample requests.
The blog explaining JSWS and the use case can be found at https://blog.netspi.com/attacking-javascript-web-service-proxies-burp/
The plugin can be downloaded from the releases tab and loaded into Burp under the Extender tab.
Right click a request or response containing the JSWS and select Parse JSWS.
This will send the request to the JSWS tab and parse out all possible reqeusts.
From this tab you can send any of the newly crafted requests to Repeater, Scanner, Intruder, etc.