roadoi: Find Free Versions of Scholarly Publications via Unpaywall

This web client interfaces Unpaywall <>, 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.

Package details

AuthorNajko Jahn [aut, cre], Tuija Sonkkila [rev] (Tuija Sonkkila reviewed the package for rOpenSci, see, <>), Ross Mounce [rev] (Ross Mounce reviewed the package for rOpenSci, see, <>), Anne Hobert [ctb] (<>), Delwen Franzen [ctb]
MaintainerNajko Jahn <>
LicenseMIT + file LICENSE
Package repositoryView on CRAN
Installation Install the latest version of this package by entering the following in R:

Try the roadoi package in your browser

Any scripts or data that you put into this service are public.

roadoi documentation built on March 18, 2022, 5:08 p.m.