Mathematica
Mathematica Link
A link is a utility package that allows you to access the engine by means of Java. In this case this is the link to Mathematica [More...]
Mathematica Phrasebook
Using Mathematica to do OpenMath stuff is easy. Just use the phrasebook and call a remote running Mathematica. Click on the link below to download it.
Note: to be able to use this you need a Mathematica running on a TCP/IP socket.