This is developmental python code to check references of a bunch of pdf files that are saved in a folder. The use case for which this is written is to check whether the references included in submissions for an assignment can be verified.
There are two versions:
ref_checker.ipnyb
This will check all submissions in a folder and return a spreadsheet with one row for all unverified references.
ref_checker_particular_paper.ipnyb
This will check all references in one paper and return a json file with verification info for all references in a paper.
Get in touch if you are interested in developing this into something more workable and mature
Ralf https://datasquad.github.io/ralffbecker/index.html
Looks like a much more accomplished effort has been done here: https://github.com/JackKuo666/Crossref-MCP-Server