there are various ways to use SC with other applications.
By sending OSC network messages to the SC Server one can control
sound processes from other clients.

to send osc messages from terminal e.g. see sendOSC

clients using sc scerver

• Scheme
  • rsc3 is an r6rs scheme supercollider client.
• Haskell
  • hsc3 is a haskell supercollider client.
• SmallTalk
  • A squeak OSC-Client by Marcus Gälli, which works with SC: OSC-Client
• Python
  • scosc, python OSC for supercollider: http://www.patrickkidd.com/
  • Installation of PySCLang (sclang for python): here is a quick installation tutorial by Johnathan Saggau
• Q
  • Albert Graef lets his Q functional programming language for multimedia applications talk specially to SC3 through OSC: http://q-lang.sourceforge.net/
• Java
  • As much as Mühlethaler and Schuppisser with their Sonificator do this with java: http://www.substring.ch/sound/
  • scream, a system based on java: http://audio.egregious.net/scream/
  • JCollider duplicates some of SCLang's client side representation classes to simplify the building of Java based clients (project is beta state): http://www.sciss.de/jcollider
• Processing
  • using OSC, communication with Processing is possible. An example is here
• CommonMusic
  • Rick Taube's algorithmic library for LISP. Page at sourceforge
• ML
  • smlsc3 is a Standard ML supercollider client.

editors

• scvim vim scripts for supercollider
• sced (a gedit plugin)
• scfront (a Tcl/Tk frontend)

GUI

• SwingOSC is an OpenSoundControl (OSC) server intended for scripting Java
• SCVamp improvisation with multiple SuperCollider synths and patterns through a graphical user interface.
• SCUM is an OpenSoundControl (OSC) GUI server based on FLTK.

other systems

• vst2osc: sending osc messages from any VST-compatible application
• SuperColliderAU: AudioUnits wrapper for scsynth
• javaosc, a library for talking the Open Sound Control (OSC) protocol in Java.
• communication from Cocoa with sc http://www.mat.ucsb.edu/~c.ramakr/illposed/objcosc.html
• a java based system for creation of spatialisation data: http://sourceforge.net/projects/meloncillo/
• a java based sound editor using scsynth: http://www.sciss.de/eisenkraut
• a soundfile segmentor that comes with supercollider classes: Meapsoft
• open sound control library for lisp cl-osc
• faust a functional language for real-time audio processing, which can compile DSP expressions to C++ SuperCollider plugin code (as well as to other formats).

hardware connections

• lemur-tutorial for supercollider