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I would second using Unpaywall for this purpose. Librarians at the University of Minnesota and Penn State put together a short course on analyzing publication output, including using the Unpaywall API with OpenRefine, which is available here: https://docs.google.com/document/d/1hbZkNNqoHI9nWlSOdKv-ca12wUlGu55xadU16SXPaQA/edit?usp=sharing. Personally, I've found it very helpful. Caitlin Bakker (she/her) Discovery Technologies Librarian Dr. John Archer Library University of Regina (306) 585-4015 | [log in to unmask] | 0000-0003-4154-8382 ( https://orcid.org/0000-0003-4154-8382) The University of Regina is situated on Treaty 4 lands with a presence in Treaty 6. These are the territories of the Cree, Saulteaux, Dakota, Lakota, and Nakoda, and the homeland of the Métis/Michif Nation. >>> Jessica Hymers <[log in to unmask]> 2023-01-26 10:25 AM >>> Hi Eric, If you have DOI you could try querying Unpaywall <https://unpaywall.org/> and I think Open Access Button <https://openaccessbutton.org/> might work with metadata other than DOI as well. Cheers Jessica University of Toronto On Thu, Jan 26, 2023 at 11:16 AM Eric Lease Morgan <[log in to unmask]> wrote: > Given bibliographic metadata such as author, article title, journal title, > date, etc., how can one programmatically go about learning whether or not > the given article has been published as open access? I suppose I could > query something like SHERPA. No? What might you suggest? --Eric Morgan, > University of Notre Dame >