KO2Pathway is a command-line tool designed to map KEGG Orthology (KO) identifiers to KEGG pathways efficiently. The tool retrieves pathway information from KEGG and generates a summary of pathway descriptions with the associated KO counts. Additionally, KO2Pathway allows for excluding specific pathways based on custom-defined terms and supports caching of KO-to-pathway mappings to avoid repetitive queries to the KEGG API.