This package provides a set of tools to extract bibliographic content from PubMed database using NCBI REST API <https://www.ncbi.nlm.nih.gov/home/develop/api/>. It includes functions to search, download, and convert PubMed bibliographic records into data frames compatible with the bibliometrix package. Features include programmatic query building, batch downloading by PMID, citation enrichment via NCBI E-Link, and robust error handling with automatic retry logic.