Client for Various 'CrossRef' 'APIs' R package rcrossref version 1.2.1 CRAN Task View: WebTechnologies (https://CRAN.R-project.org/view=WebTechnologies) Client for various 'CrossRef' 'APIs', including 'metadata' search with their old and newer search 'APIs', get 'citations' in various formats (including 'bibtex', 'citeproc-json', 'rdf-xml', etc.), convert 'DOIs' to 'PMIDs', and 'vice versa', get citations for 'DOIs', and get links to full text of articles when available. Software Imports: methods, utils, jsonlite (>= 1.5), crul (>= 0.7.4), xml2 (>= 1.1.1), plyr, dplyr (>= 0.7.4), tibble, R6, shiny, miniUI, stringr, DT, stats, rlang Suggests: roxygen2 (>= 7.1.0), testthat, knitr, rmarkdown, vcr (>= 0.2.6), bibtex, withr Najko Jahn <najko.jahn@gmail.com> Comprehensive R Archive Network (CRAN) Scott Chamberlain [aut], Hao Zhu [aut], Najko Jahn [aut, cre] (ORCID: <https://orcid.org/0000-0001-5105-1463>), Carl Boettiger [aut], Karthik Ram [aut] MIT + file LICENSE (https://CRAN.R-project.org/package=rcrossref/LICENSE) 2025-08-20 application/tgz https://CRAN.R-project.org/package=rcrossref doi:10.32614/CRAN.package.rcrossref en-US