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 >