There are many systems for which I've written wrappers.
Apertium.pm Docbook ExtractAbbrev.pm Glimpse.pm LinkGrammar.pm MinorThird.pm OpenCyc.pm Spark TextMine.pm WWW CELT.pm Docbook.pm Festival.pm GnuPlot LinkParser.pm MontyLingua.pm Rhyme.pm Spark.pm Wiki ConceptNet.pm Enju.pm Gate.pm GnuPlot.pm MinorThird OpenCyc RWhois.pm Template.pm Wiki.pm