CL-ACE is a set of Lisp bindings for some of the Attempto Tools. CL-ACE currently provides bindings for the webservice version of APE (ACE Parser) and RACE (ACE Reasoner). CL-ACE uses DRAKMA as an HTTP client, and Closure XML for XML processing. CL-ACE supports parsing the results of the webservices into Lisp objects, but also provides and interface for retrieving unprocessed webservice output. Of particular note is that CL-ACE implements CLOS classes corresponding to the discourse representation structures described in the ACE 6.5 DRS Report.
CL-ACE has documentation (generated by CLDOC). Good starting points for
using APE are ape-webservice:ape and ape-webservice:invoke-ape-webservice. For using RACE, see
race-webservice:race and race-webservice:invoke-race-webservice. Other important documents to read
are the APE Webservice Specification, the documentation for the Race Web Service, and other various
Attempto Documents.