Exact source text, not summaries: check citations and quotes in one call; read pages and PDFs.
Free
One server, in web, search & scraping. Exact source text, not summaries: check citations and quotes in one call; read pages and PDFs.
Web, Search & Scraping
Exact source text, not summaries: check citations and quotes in one call; read pages and PDFs.
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.