Sn Search Academic

You can search ArXiv preprints, Semantic Scholar with citation counts, PubMed biomedical literature, and Wikipedia, then drill into ArXiv HTML and PMC open access papers section by section. The citation tracing tools are the standout feature: run backward searches to find foundational references or forward searches to track who's building on a paper, filtered by citation count and year. The workflow is token-efficient: search returns metadata and abstracts, then you pull specific sections like Methods or Results only when needed. Most tools work without API keys, though Semantic Scholar and PubMed offer higher rate limits if you have one. Best for literature reviews where you need to map a research area quickly without reading dozens of full PDFs.