Science & Math APIs

NASA data, including imagery

Curated research-sharing platform: physics, mathematics, quantitative finance, and economics

NASA Astrophysics Data System

Earthquakes data real-time

CORE

Science & Math

Access the world's Open Access research papers

Water quality and level info for rivers and lakes

Academic search engine for papers, authors, and citations

Repository and archive for study designs, research materials, data, manuscripts, etc

Citizen-science wildlife observations with species identification and mapping

A free, open, dataset about research and scholarly activities

ISRO Space Crafts Information

3D structures of proteins and nucleic acids

Symbolic and Arithmetic Math Calculator

Open catalog of scholarly works, authors, institutions, sources, and concepts

Life-science literature search with abstracts, citations and full-text links

Real Time Air Quality Monitoring

Sunset and sunrise times for a given latitude and longitude

Global Biodiversity Information Facility

Numbers

Science & Math

Number of the day, random number, number facts and anything else you want to do with numbers

Integrated Taxonomic Information System

Render LaTeX equations in PNG, GIF, SVG, EMF, PDF, JSON, or download formats with styling options

Open-access status and legal full-text links for scholarly articles

Search and retrieve DOI metadata for research datasets and publications

Spaceflight launches and events database