Audit a paper from text you already have.

This page exists for paywalled venues with no preprint, no PMC deposit, no self-archived PDF - the cases where the open-web fallback chain of OpenAlex, Unpaywall, EuropePMC, Semantic Scholar and arXiv retrieves nothing. Paste the abstract or full body (or upload a PDF). The same Claude Opus 4.7 extraction runs against whatever you provide and it is scored exactly the way the DOI flow scores an open-access fetch. Have a DOI? Use the standard form →