#papers

Search the entire arXiv scholarly-preprint corpus as an API — millions of papers across physics, mathematics, computer science, quantitative biology and finance, statistics, electrical engineering and economics. Query by free text, title, author and/or subject category (e.g. q=transformer&category=cs.AI), with paging and sort by relevance, submission or last-update date, or pull full metadata for any paper by its arXiv id (e.g. 1706.03762 → "Attention Is All You Need"). Every result carries the title, full author list, abstract, primary and cross-list categories, DOI, journal reference, comments and a direct PDF link. Ideal for literature-review and research tools, citation managers, ML/AI paper trackers, academic search and discovery, and science newsletters.

api.oanor.com/arxiv-api

Search the world’s biomedical literature and retrieve clean article metadata and abstracts, powered by the U.S. National Library of Medicine’s PubMed via NCBI E-utilities. Search 35+ million citations by keyword with relevance or date sorting, look up one or more articles by PubMed id for title, authors, journal, publication date, volume/issue/pages, DOI and publication type, or fetch the full abstract text for a paper. Authoritative open data returned as tidy JSON through a fast, reliable API. Ideal for health-tech and clinical tools, pharma and life-sciences research, systematic reviews, reference managers and academic apps.

api.oanor.com/pubmed-api

Search scholarly literature and look up rich publication metadata from Crossref, the DOI registry behind millions of journal articles, books, chapters, conference papers and datasets. Full-text search across 150+ million works with relevance or citation sorting and optional filters, retrieve any work by its DOI (plain, doi: or URL form accepted), and search journals and publishers. Every work comes back as a clean record with title, authors and ORCIDs, journal/container, publisher, publication date, volume/issue/page, ISSN/ISBN, abstract, subjects, license and citation count. Authoritative open scholarly metadata delivered through a fast, reliable API — ideal for reference managers, repositories, research analytics, discovery tools and academic apps.

api.oanor.com/crossref-api