rromeo is an R client for the SHERPA/RoMEO API. SHERPA/RoMEO is a database that gives information on editorial policies of scientific journals regarding the archival of preprint, postprint and publishers’ manuscripts. rromeo is aimed at scientists interested in archival practices of scientific journals, such as professionals of scientometrics but also at scientist of specific fields interested in the practices of their fields.


The latest stable release of rromeo is available on CRAN and can be installed with:

You can also install the development version from GitHub:


Note that SHERPA/RoMEO lets you run 500 requests per day per IP address, by registering for a free API key you can bypass this limit.

rromeo can use your registered SHERPA/RoMEO API key; you can either pass it as a string when querying the data with the argument key:

rr_journal_name("Journal of Geology", key = "Iq83AIL5bss")

or you can specify the environment variable SHERPAROMEO_KEY in an .Rprofile or in an .Renviron file and rromeo will automatically retrieve the API key.


rromeo contains functions to retrieve data from the SHERPA/RoMEO API (for a complete overview please refer to the vignette). The data is released under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 (CC BY-NC-SA 2.5) license. A suggestion of citation is included in rromeo via citation("rromeo").

rromeo functions are prefixed with rr_ such as rr_journal_name() that lets you retrieve a journal policy information using the title of a journal:

the qtype argument indicates the type of query to make (exact for exact matching of the title, contains for partial matching and starts with to match only the beginning of the title).

You can also retrieve a journal information using its ISSN:

rromeo also provides a function to retrieve information based on publisher ID rr_publisher().

SHERPA/RoMEO provides a synthetic “colour” for each journal, the colour summarizes the editorial policy of a journal:

RoMEO colour Archiving policy
green can archive preprint, postprint and publisher’s version
blue can archive postprint or publisher’s version
yellow can archive preprint
white archiving not formally supported

(Table taken from http://www.sherpa.ac.uk/romeo/definitions.php#colours)

rromeo lets you retrieve the policies of all journals of a given colour using the function rr_romeo_colour() (NOTE: this function can be slow as there are many journals to retrieve):

Dependency network (Imports only)

Dependency network (Imports and Suggests)

Contributing to rromeo

We welcome contribution to rromeo! Please read the contribution guidelines if you want to contribute, as well as the below-mentioned Code of Conduct.

Code of Conduct

Please note that the rromeo project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.