Additionally, the IPOPT distribution includes interfaces for
There are also interfaces maintained by other people, among them are:
The AIMMSlinks project on COIN-OR, maintained by Marcel Hunting, provides an interface for IPOPT within the AIMMS modeling tool, see https://projects.coin-or.org/AIMMSlinks.
The GAMSlinks project on COIN-OR, maintained by Stefan Vigerske, includes a GAMS interface for IPOPT, see https://projects.coin-or.org/GAMSlinks.
An interface to the C# language is available here: http://code.google.com/p/csipopt
OPTI is a free Matlab toolbox for constructing and solving linear, nonlinear, continuous and discrete optimization problem and comes with IPOPT.
An interface to the python language is available here: https://github.com/xuy/pyipopt
A Scilab interface is available here: http://forge.scilab.org/index.php/p/sci-ipopt