Paper Nexus

Paper Nexus maps the scientific literature by its citations, across the scholarly works in OpenAlex and Semantic Scholar. Connect it to Claude to find a paper and the work around it, without leaving the conversation. Ask for papers related to one paper or several. Related means connected in the citation network (cited alongside, citing the same work), not merely similar wording, so it surfaces the papers a field builds on even when they use different terms. Give it several papers and the work linked to more than one of them comes first. Each recommendation says why it was picked: which of your papers it is linked to, whether it cites them or they cite it, and how many co-citations and shared references connect them. Every paper links to its page on papernex.us, and every set of recommendations comes with a link that opens the whole citation graph there. Find papers by title, DOI, or a link to arXiv, PubMed, doi.org or a publisher's page. Read a paper's details and its most-cited references, see the papers that cite it, and, if you allow it, work from the collections in your Paper Nexus library. Sign in with a free Paper Nexus account: no API key, 10 recommendation or citing-paper calls a week and 100 lookups a day. Premium raises that to 200 calls a day, combines up to 10 papers per request, and adds filters by year, citation count, author, venue, title words, citing or cited papers, open access and document type. All tools are read-only. Paper Nexus never changes your library or anything else on your behalf.