RE: https://fosstodon.org/@BrunoLevy01/116131000728952901

doi2bib — give us a DOI and we will do our best to get you the BibTeX entry

https://www.doi2bib.org/

@dougmerritt should be a CLI for it. I focused on that area a year or two ago but rusty so dont remember

@synlogic4242
> should be a CLI for it.

Searching found cross-platform FOSS CLI + GUI tool:
> ...QuickBib is a cross-platform utility that uses doi2bib3 to fetch BibTeX for DOIs, arXiv identifiers as well as article titles. Works as a GUI app and also as a CLI.
> Paste arXiv IDs, arXiv URLs, Journal links or titles — QuickBib detects them and resolves the DOI automatically.
https://archisman-panigrahi.github.io/QuickBib/

It said it uses 'doi2bib3', which is here:
> doi2bib3 is a small Python utility to fetch BibTeX metadata for a DOI or to resolve arXiv identifiers to DOIs and fetch their BibTeX entries. It accepts DOI inputs, DOI URLs, arXiv IDs/URLs (modern and legacy), publisher landing pages, and uses a sequence of resolution strategies to return a BibTeX string. This tool combines the features of doi2bib and doi2bib2...
https://github.com/archisman-panigrahi/doi2bib3

QuickBib — Convert DOI to BibTeX

QuickBib — cross-platform app to fetch BibTeX from DOI and arXiv identifiers using doi2bib3.

@dougmerritt I just do the following in a shell window (or rather I have a shell alias to shorten it):

curl -LH "Accept: application/x-bibtex" http://dx.doi.org/...

Resolve a DOI Name