The LUXCalc package provides the means to easily calculate dark matter direct detection likelihoods and cross-section limits for the LUX 2013 experimental result [PRL] [arXiv]. The package provides both a standalone program and a library for linking with external packages. The code is written in Fortran and thus requires a Fortran compiler to be installed, but a C++ header file is provided for easy usage with C++ code.
The LUXCalc package is described in this article [arXiv].