arcsecond.ioapi.arcsecond.io
Multiple astronomy data sources
No key HTTPSCORS ?
Science & Math
59 APIs
Science APIs give access to research papers, biological databases, space data, earthquake feeds and math engines. Many come from public institutions and need no key, but they often ask for polite request rates or an email address in the request so they can contact heavy users. Check citation and reuse terms before you republish data.
arXivinfo.arxiv.org
Curated research-sharing platform: physics, mathematics, quantitative finance, and economics
No key HTTPSCORS ?
Botlerobotlero.com
Sourced, quoted specs for humanoid robots
No key HTTPSCORS
Chempiricalchempirical.com
Chemical compounds with physical data, reactions and substructure search
No key HTTPSCORS
CodeCogseditor.codecogs.com
Render LaTeX equations in PNG, GIF, SVG, EMF, PDF, JSON, or download formats with styling options
No key HTTPSCORS ?
COREcore.ac.uk
Access the world's Open Access research papers
API keyHTTPSCORS ?
CycleCalcscyclecalcs.com
Interpreted astronomy: sun and moon times, moon phases, planets, eclipses, seasons
No key HTTPSCORS
DataCitesupport.datacite.org
Search and retrieve DOI metadata for research datasets and publications
No key HTTPSCORS
ENAebi.ac.uk
Nucleotide sequences, genomes and raw reads archive
No key HTTPSCORS
Europe PMCeuropepmc.org
Life-science literature search with abstracts, citations and full-text links
No key HTTPSCORS
GBIFgbif.org
Global Biodiversity Information Facility
No key HTTPSCORS
iDigBiogithub.com
Access millions of museum specimens from organizations around the world
No key HTTPSCORS ?
i
iNaturalistapi.inaturalist.org
Citizen-science wildlife observations with species identification and mapping
No key HTTPSCORS
inspirehep.netgithub.com
High Energy Physics info. system
No key HTTPSCORS ?
isEven (humor)isevenapi.xyz
Check if a number is even
No key HTTPSCORS ?
I
ISROisro.vercel.app
ISRO Space Crafts Information
No key HTTPSNo CORS
ITISitis.gov
Integrated Taxonomic Information System
No key HTTPSCORS ?
K
KEGGkegg.jp
Genes, pathways, compounds and reactions
No key HTTPSCORS ?
Launch Library 2thespacedevs.com
Spaceflight launches and events database
No key HTTPSCORS
M
Macrostratmacrostrat.org
Geologic maps, rock columns and stratigraphy data
No key HTTPSCORS
Curated experimental data for materials science
API keyHTTPSNo CORS
MathJSapi.mathjs.org
Evaluate math expressions via GET or POST as JSON
No key HTTPSCORS
M
Minor Planet Centerasterank.com
Asterank.com Information
No key HTTP onlyCORS ?
MyGene.infodocs.mygene.info
Gene annotation queries and ID lookup
No key HTTPSCORS
NASAapi.nasa.gov
NASA data, including imagery
No key HTTPSNo CORS
NASA InSightapi.nasa.gov
Mars weather data from InSight lander
API keyHTTPSCORS
NASA ADSui.adsabs.harvard.edu
NASA Astrophysics Data System
OAuthHTTPSCORS
NCBI E-utilitiesncbi.nlm.nih.gov
Biomedical literature, sequences and gene databases
No key HTTPSCORS
N
Newtonnewton.vercel.app
Symbolic and Arithmetic Math Calculator
No key HTTPSNo CORS
N
Noctuaapi.noctuasky.com
REST API used to access NoctuaSky features
No key HTTPSCORS ?
Numbersmath.tools
Number of the day, random number, number facts and anything else you want to do with numbers
API keyHTTPSNo CORS
O
OBISmanual.obis.org
Global marine species occurrence and distribution data
No key HTTPSCORS
O
Ocean Factsoceanfacts.herokuapp.com
Facts pertaining to the physical science of Oceanography
No key HTTPSCORS ?
Oliver's mTOR Atlasmtor-atlas.org
Curated mTOR research: studies by evidence type, pathway claims, open questions
No key HTTPSCORS
O
Open Notifyopen-notify.org
ISS astronauts, current location, etc
No key HTTP onlyNo CORS
Open Science Frameworkdeveloper.osf.io
Repository and archive for study designs, research materials, data, manuscripts, etc
No key HTTPSCORS ?
OpenAlexdocs.openalex.org
Open catalog of scholarly works, authors, institutions, sources, and concepts
No key HTTPSCORS
Open Ephemerisopenephemeris.com
Sub-arcsecond planetary positions, natal charts, transits, and Human Design from NASA JPL DE440
API keyHTTPSNo CORS
OrbitalWikiorbitalwiki.com
Catalog of 16,000+ satellites merging CelesTrak, GCAT, Wikidata; free tier included
API keyHTTPSCORS
Purple Airwww2.purpleair.com
Real Time Air Quality Monitoring
No key HTTPSCORS ?
R
RCSB PDBdata.rcsb.org
3D structures of proteins and nucleic acids
No key HTTPSCORS
Remote Calcgithub.com
Decodes base64 encoding and parses it to return a solution to the calculation in JSON
No key HTTPSCORS
SatNOGSdocs.satnogs.org
Satellite observations from open ground stations
No key HTTPSCORS ?
Semantic Scholarapi.semanticscholar.org
Academic search engine for papers, authors, and citations
No key HTTPSCORS ?
SHAREshare.osf.io
A free, open, dataset about research and scholarly activities
No key HTTPSNo CORS
Solar System OpenDataapi.le-systeme-solaire.net
Data and facts on solar system bodies and planets
No key HTTPSCORS
SpaceXgithub.com
Company, vehicle, launchpad and launch data
No key HTTPSNo CORS
S
SpaceXapi.spacex.land
GraphQL, Company, Ships, launchpad and launch data
No key HTTPSCORS ?
Sunrise and Sunsetsunrise-sunset.org
Sunset and sunrise times for a given latitude and longitude
No key HTTPSNo CORS
Tallytopiatallytopia.com
Calculators for finance, health, math, space and sports with step-by-step results
No key HTTPSCORS
Times Addergithub.com
With this API you can add each of the times introduced in the array sended
No key HTTPSNo CORS
TLEtle.ivanstanojevic.me
Satellite information
No key HTTPSNo CORS
Unpaywallunpaywall.org
Open-access status and legal full-text links for scholarly articles
No key HTTPSCORS
USGS Earthquake Hazards Programearthquake.usgs.gov
Earthquakes data real-time
No key HTTPSNo CORS
USGS Water Serviceswaterservices.usgs.gov
Water quality and level info for rivers and lakes
No key HTTPSNo CORS
VedIntel™ AstroAPIvedintelastroapi.com
Vedic astrology computation — birth charts, dashas, panchang, AI narratives
API keyHTTPSCORS
World Bankdatahelpdesk.worldbank.org
World Data
No key HTTPSNo CORS
WoRMSmarinespecies.org
Marine species taxonomy, synonyms and distributions
No key HTTPSNo CORS
x
xMathx-math.herokuapp.com
Random mathematical expressions
No key HTTPSCORS