Our Sources
Every search queries these 13 trusted databases in parallel.
Academic & Research
OpenAlex
A free, open index of over 240 million scholarly works, authors, institutions, and concepts. Maintained by OurResearch, a nonprofit.
arXiv
A free distribution service and open-access archive for scholarly articles across physics, mathematics, computer science, and other quantitative fields. Operated by Cornell University.
Crossref
A nonprofit membership organization that provides DOI-based linking and metadata for over 140 million scholarly records from thousands of publishers.
Europe PMC
An open-access repository of life sciences literature, with over 40 million abstracts and 9 million full-text articles. Partnered with the U.S. National Library of Medicine.
DOAJ
The Directory of Open Access Journals. A nonprofit that manually vets every journal it indexes, providing a trusted filter against predatory publishers. Covers over 10 million open-access articles.
CORE
The world's largest aggregator of open-access research, operated by the UK's Open University and Jisc. Indexes over 280 million papers from institutional repositories worldwide.
OpenAIRE
A European research infrastructure funded by the European Commission. Aggregates publications, datasets, and research outputs from repositories across Europe and beyond.
NASA ADS
The Astrophysics Data System, operated by the Harvard-Smithsonian Center for Astrophysics. The authoritative database for astronomy, physics, earth science, and related disciplines with over 25 million records.
News & General
GDELT Project
A real-time, open database monitoring broadcast, print, and web news from nearly every country in over 100 languages. Supported by Google Jigsaw.
Hacker News
A social news website focused on computer science and entrepreneurship, run by Y Combinator. We search submissions and their linked articles via the Algolia API.
The Guardian
A British daily newspaper known for investigative journalism and in-depth international reporting. Founded in 1821, it provides open API access to its article archive.
NewsAPI
An aggregator that indexes articles from thousands of global news sources including Reuters, AP, BBC, and major regional outlets. Provides a unified interface across mainstream journalism.
Mediastack
Real-time news aggregation from over 7,500 sources across 50+ countries. Covers breaking news, business, sports, and regional coverage.
A note on attribution
All metadata, titles, and snippets displayed in search results come from the respective source APIs and remain the property of their original publishers. Clicking any result takes you directly to the original source.