(William S. Cleveland, Daniel Kocevski, Robert D. Preece)
Prior to the launch of Fermi, the GBM team developed a GUI-based spectral analysis software tool in IDL, called RMfit, specializing in the analysis of GBM trigger data. More than 10 years later, an open source, multi-wavelength approach is desirable, integrating with the long-standing community standard fitting engine, XSPEC. GSpec is a replacement of RMfit, implemented in Python, that allows analysis of GBM data via a user-interactive GUI similar to RMfit and additionally enables users to create their own Python scripts using the included libraries. GSpec will provide a seamless interface to XSPEC and will allow users to define additional data reduction techniques, such as background fitting/estimation and data binning, as Python-based plugins. I will demonstrate the various features of the debut version of GSpec, and I will highlight that it is part of a larger effort to produce a set of GBM data tools to allow the broader community to analyze all aspects of GBM data, including the continuous data that GBM produces.