We developed an automated tool called metallicious for parametrizing covalent metal models in supramolecular structures. Our method leverages the repetitive patterns of binding metal motifs in these structures. Several standard templates for such structures were parametrized and stored in the library, which metallicious utilize to parametrize input structures by matching a suitable template and copying its parameters. To broaden the scope of the template library and increase efficiency, metallicious provides convenient truncation schemes, allowing the recycling of available templates. Lastly, metallicious can automatically parametrize new templates if no matching one is available.