USGS Water Services
Water quality and level info for rivers and lakes
Auth
No Auth
HTTPS
Yes
CORS
No
More Science & Math APIs
View allarcsecond.io
Multiple astronomy data sources
apiKeyHTTPS
arXiv
Curated research-sharing platform: physics, mathematics, quantitative finance, and economics
No AuthHTTPS
Bootprint
Random facts and images of space
No AuthHTTPSCORS
CORE
Access the world's Open Access research papers
apiKeyHTTPS
GBIF
Global Biodiversity Information Facility
No AuthHTTPSCORS
iDigBio
Access millions of museum specimens from organizations around the world
No AuthHTTPS