The GDS Burp API exposes a Python object interface to requests/responses
recorded by Burp (whether Proxy/Spider/Repeater, etc).  The API is used to
parse Burp logs, creating a list of “Burp objects” that contain the request
and response data and related meta-data.

For more information see:
http://www.gdssecurity.com/l/b/2010/08/10/constricting-the-web-the-gds-burp-api/.