science-articles
CORE (core.ac.uk)
An aggregator of open-access research that harvests full text and metadata from more than 10,000 repositories, totalling some 300 million records with over 40 million full-text items. Access is through a search API that needs a free key, since anonymous use is heavily throttled. Reach for it when you want the widest possible net over open-access full text rather than a single repository.
Why it’s useful & how it works
Free instant key; anonymous is heavily throttled (429 seen direct). With a key, reachable both ways.
What’s inside
~300M+ records, 40M+ full-text.
API access
https://api.core.ac.uk/v3/search/works?q= ... (Bearer key)
An API key is required — usually free; see the endpoints above for where to get one.
Access
Programmatic API access (a key may be required — see the API tag).