Resolution, Conversion, Linking and Metadata for Scholarly Identifiers R package scholidonline version 0.2.0 Enables querying of scholarly identifier services to verify identifier existence, convert identifiers across systems, retrieve bibliographic metadata, and discover linked identifiers. Supports identifier types including DOI, PMID, PMCID, arXiv, ORCID, OpenAlex, ROR, UniProt, and selected NCBI accessions (GEO, BioProject, RefSeq, SRA, and genome assembly). Software Depends: R (>= 4.0.0) Imports: scholid (>= 0.2.0), httr2, rlang Suggests: testthat (>= 3.0.0), knitr (>= 1.30), rmarkdown Thomas Rauter <rauterthomas0@gmail.com> Comprehensive R Archive Network (CRAN) Thomas Rauter [aut, cre, fnd] (ORCID: <https://orcid.org/0009-0004-5578-3628>) MIT + file LICENSE (https://CRAN.R-project.org/package=scholidonline/LICENSE) 2026-06-14 application/tgz https://CRAN.R-project.org/package=scholidonline doi:10.32614/CRAN.package.scholidonline en-US