rcrossref: R interface to CrossRef APIs

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CrossRef documentation


Stable version from CRAN


Or development version from GitHub


Load rcrossref


Register for the Polite Pool

If you are intending to access Crossref regularly you will want to send your email address with your queries. This has the advantage that queries are placed in the polite pool of servers. Including your email address is good practice as described in the Crossref documentation under Good manners (https://github.com/CrossRef/rest-api-doc#good-manners–more-reliable-service). The second advantage is that Crossref can contact you if there is a problem with a query.

Details on how to register your email in a call can be found at ?rcrossref-package. To pass your email address to Crossref, simply store it as an environment variable in .Renviron like this:

Open file: file.edit("~/.Renviron")

Add email address to be shared with Crossref crossref_email= "name@example.com"

Save the file and restart your R session

To stop sharing your email when using rcrossref simply delete it from your .Renviron file.


See https://docs.ropensci.org/rcrossref/ to get started


This package is part of a richer suite called fulltext (https://github.com/ropensci/fulltext), along with several other packages, that provides the ability to search for and retrieve full text of open access scholarly articles.