Find Free Versions of Scholarly Publications via Unpaywall R package roadoi version 0.7.3 CRAN Task View: WebTechnologies (https://CRAN.R-project.org/view=WebTechnologies) This web client interfaces Unpaywall <https://unpaywall.org/products/api>, formerly oaDOI, a service finding free full-texts of academic papers by linking DOIs with open access journals and repositories. It provides unified access to various data sources for open access full-text links including Crossref and the Directory of Open Access Journals (DOAJ). API usage is free and no registration is required. Software Imports: httr, jsonlite, dplyr, plyr, purrr, tibble, miniUI, shiny (>= 1.0.3), tidyr, rlang Suggests: roxygen2 (>= 6.0.1), testthat, knitr, covr, rmarkdown, lintr Najko Jahn <najko.jahn@gmail.com> Comprehensive R Archive Network (CRAN) Najko Jahn [aut, cre], Tuija Sonkkila [rev] (Tuija Sonkkila reviewed the package for rOpenSci, see https://github.com/ropensci/onboarding/issues/115, ORCID: <https://orcid.org/0000-0002-6892-9305>), Ross Mounce [rev] (Ross Mounce reviewed the package for rOpenSci, see https://github.com/ropensci/onboarding/issues/115, ORCID: <https://orcid.org/0000-0002-3520-2046>), Anne Hobert [ctb] (ORCID: <https://orcid.org/0000-0003-2429-2995>), Delwen Franzen [ctb] MIT + file LICENSE (https://CRAN.R-project.org/package=roadoi/LICENSE) 2024-09-26 application/tgz https://CRAN.R-project.org/package=roadoi doi:10.32614/CRAN.package.roadoi