# Ask science

Put a question at the end of this address and get the scientific studies about it, as plain text:

    https://ask.sciencemadereadable.com/why do cats purr

(Spaces may be typed as they are, or as %20 or +.) About 200 million studies: titles and abstracts from OpenAlex,
searched by meaning. Quotes or AND / OR / NOT search for those exact words instead:

    https://ask.sciencemadereadable.com/"gut microbiome" AND autism

Options after a ?: k=30 (more results, up to 100), year_from=2020, year_to, type=review, open_access=true,
abstracts=false. For example: https://ask.sciencemadereadable.com/does coffee affect sleep?k=20&year_from=2020

Free, no key, 30 questions a minute per address. Each answer links to the paper and to its page on
https://sciencemadereadable.com (its place on the map of science, its citations, and a plain-language version
when the paper is open). For programs: the JSON API and its guide, https://api.sciencemadereadable.com/api/data/llms.txt