arcsecond.io
Multiple astronomy data sources
Science & Math · No auth · HTTPS
Science & Math APIs
44 API records with directory-reported descriptions, access facts, and source links.
arXiv
Curated research-sharing platform: physics, mathematics, quantitative finance, and economics
Science & Math · No auth · HTTPS
CodeCogs
Render LaTeX equations in PNG, GIF, SVG, EMF, PDF, JSON, or download formats with styling options
Science & Math · No auth · HTTPS
CORE
Access the world's Open Access research papers
Science & Math · API key · HTTPS
CycleCalcs
Interpreted astronomy: sun and moon times, moon phases, planets, eclipses, seasons
Science & Math · No auth · HTTPS
Europe PMC
Life-science literature search with abstracts, citations and full-text links
Science & Math · No auth · HTTPS
GBIF
Global Biodiversity Information Facility
Science & Math · No auth · HTTPS
iDigBio
Access millions of museum specimens from organizations around the world
Science & Math · No auth · HTTPS
inspirehep.net
High Energy Physics info. system
Science & Math · No auth · HTTPS
isEven (humor)
Check if a number is even
Science & Math · No auth · HTTPS
ISRO
ISRO Space Crafts Information
Science & Math · No auth · HTTPS
ITIS
Integrated Taxonomic Information System
Science & Math · No auth · HTTPS
Launch Library 2
Spaceflight launches and events database
Science & Math · No auth · HTTPS
Materials Platform for Data Science
Curated experimental data for materials science
Science & Math · API key · HTTPS
Minor Planet Center
Asterank.com Information
Science & Math · No auth · HTTPS not confirmed
MyGene.info
Gene annotation queries and ID lookup
Science & Math · No auth · HTTPS
NASA
NASA data, including imagery
Science & Math · No auth · HTTPS
NASA InSight
Mars weather data from InSight lander
Science & Math · API key · HTTPS
NASA ADS
NASA Astrophysics Data System
Science & Math · OAuth · HTTPS
Newton
Symbolic and Arithmetic Math Calculator
Science & Math · No auth · HTTPS
Noctua
REST API used to access NoctuaSky features
Science & Math · No auth · HTTPS
Numbers
Number of the day, random number, number facts and anything else you want to do with numbers
Science & Math · API key · HTTPS
Numbers
Facts about numbers
Science & Math · No auth · HTTPS not confirmed
Ocean Facts
Facts pertaining to the physical science of Oceanography
Science & Math · No auth · HTTPS
Open Notify
ISS astronauts, current location, etc
Science & Math · No auth · HTTPS not confirmed
Open Science Framework
Repository and archive for study designs, research materials, data, manuscripts, etc
Science & Math · No auth · HTTPS
OpenAlex
Open catalog of scholarly works, authors, institutions, sources, and concepts
Science & Math · No auth · HTTPS
OrbitalWiki
Catalog of 16,000+ satellites merging CelesTrak, GCAT, Wikidata; free tier included
Science & Math · API key · HTTPS
Purple Air
Real Time Air Quality Monitoring
Science & Math · No auth · HTTPS
RCSB PDB
3D structures of proteins and nucleic acids
Science & Math · No auth · HTTPS
Remote Calc
Decodes base64 encoding and parses it to return a solution to the calculation in JSON
Science & Math · No auth · HTTPS
Semantic Scholar
Academic search engine for papers, authors, and citations
Science & Math · No auth · HTTPS
SHARE
A free, open, dataset about research and scholarly activities
Science & Math · No auth · HTTPS
SpaceX
Company, vehicle, launchpad and launch data
Science & Math · No auth · HTTPS
SpaceX
GraphQL, Company, Ships, launchpad and launch data
Science & Math · No auth · HTTPS
Sunrise and Sunset
Sunset and sunrise times for a given latitude and longitude
Science & Math · No auth · HTTPS
Tallytopia
Calculators for finance, health, math, space and sports with step-by-step results
Science & Math · No auth · HTTPS
Times Adder
With this API you can add each of the times introduced in the array sended
Science & Math · No auth · HTTPS
TLE
Satellite information
Science & Math · No auth · HTTPS
USGS Earthquake Hazards Program
Earthquakes data real-time
Science & Math · No auth · HTTPS
USGS Water Services
Water quality and level info for rivers and lakes
Science & Math · No auth · HTTPS
VedIntel™ AstroAPI
Vedic astrology computation — birth charts, dashas, panchang, AI narratives
Science & Math · API key · HTTPS
World Bank
World Data
Science & Math · No auth · HTTPS
xMath
Random mathematical expressions
Science & Math · No auth · HTTPS