The identification of building units -metal nodes (Zn) and organic ligands (imidazolate, denoted Im) -in a glass is more challenging than for crystals, especially at high temperature, due to larger fluctuations in the bond angles and lengths, as well as the presence of defects in the coordination. We developed aMOF, a Python library, to reduce the atomic structure into a structure made of Zn and Im. It is detailed in the Supporting Information and the code is available online on , where the version used for this work corresponds to the tag jphyschem.