Semantic Scholar

What Semantic Scholar is

Semantic Scholar is a free service for finding and exploring scientific literature, available on the web, through an API, and with browser extensions. Its search uses natural language and machine-learning techniques to surface relevant academic papers. The Academic Graph API page lists 214 million papers, 2.49 billion citations, and 79 million authors. Papers can be accessed without signing in; signed-in users can organize saved work into folders, export citations in bulk, and share public folders with collaborators. Research Feeds recommend papers based on saved items and can send suggestions by email. Semantic Reader adds inline citation cards, paper navigation, contextual definitions, and annotation and highlighting through Hypothesis integration. Ask This Paper generates answers with supporting statements on a limited set of papers and has been tested only on English-language papers. Chrome and Firefox extensions allow search from highlighted text and open matching paper pages. The Zotero browser extension can save paper details, URLs, available PDFs, and available TLDRs from Semantic Scholar pages. Most API endpoints are public without authentication, though introductory API-key access is limited to 1 request per second; public unauthenticated requests share a 1,000 requests per second limit and may be throttled further. The API license limits covered use to internal, non-commercial research or education.