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
>