This project develops an application for the automated design of jointed mechanical structures. A three-step process is followed for its development, starting with literature review that includes theory regarding joint mechanical structures and the standards, ECSS and Eurocode, incorporated onto the software. This is followed by a schematization of the algorithm using Excel to enable having a quick and usable reference to have during the development of the software. This is finalized by the development of the software using Python and some of its specialized libraries for the proper construction of the algorithm and the graphical user interface. The result is a first version of the software capable of reproducing the results of the Excel schematization that provides a specialized interface with customization capabilities for further developments and an easier implementation of new dedicated functions relating to usability and expansion of the scope of the capabilities of the software..