Free Science & Math APIs

59 free public Science & Math APIs for developers. 57 support HTTPS, 26 allow CORS from the browser and 51 need no API key.

One account · one API key

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Showing 59 of 59 APIs

arcsecond.io

Multiple astronomy data sources

No authHTTPSCORS ?

arXiv

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

No authHTTPSCORS ?

Botlero

Sourced, quoted specs for humanoid robots

No authHTTPSCORS

Chempirical

Chemical compounds with physical data, reactions and substructure search

No authHTTPSCORS

$CodeCogs logo$

CodeCogs

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

No authHTTPSCORS ?

CORE

Access the world's Open Access research papers

apiKeyHTTPSCORS ?

CycleCalcs

Interpreted astronomy: sun and moon times, moon phases, planets, eclipses, seasons

No authHTTPSCORS

DataCite

Search and retrieve DOI metadata for research datasets and publications

No authHTTPSCORS

ENA

Nucleotide sequences, genomes and raw reads archive

No authHTTPSCORS

Europe PMC

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

No authHTTPSCORS

GBIF

Global Biodiversity Information Facility

No authHTTPSCORS

iDigBio

Access millions of museum specimens from organizations around the world

No authHTTPSCORS ?

iNaturalist

Citizen-science wildlife observations with species identification and mapping

No authHTTPSCORS

inspirehep.net

High Energy Physics info. system

No authHTTPSCORS ?

isEven (humor)

Check if a number is even

No authHTTPSCORS ?

ISRO

ISRO Space Crafts Information

No authHTTPSNo CORS

ITIS

Integrated Taxonomic Information System

No authHTTPSCORS ?

KEGG

Genes, pathways, compounds and reactions

No authHTTPSCORS ?

Launch Library 2

Spaceflight launches and events database

No authHTTPSCORS

Macrostrat

Geologic maps, rock columns and stratigraphy data

No authHTTPSCORS

Materials Platform for Data Science

Curated experimental data for materials science

apiKeyHTTPSNo CORS

MathJS

Evaluate math expressions via GET or POST as JSON

No authHTTPSCORS

Minor Planet Center

Asterank.com Information

No authNo HTTPSCORS ?

MyGene.info

Gene annotation queries and ID lookup

No authHTTPSCORS

NASA

NASA data, including imagery

No authHTTPSNo CORS

NASA ADS

NASA Astrophysics Data System

OAuthHTTPSCORS

NASA InSight

Mars weather data from InSight lander

apiKeyHTTPSCORS

NCBI E-utilities

Biomedical literature, sequences and gene databases

No authHTTPSCORS

Newton

Symbolic and Arithmetic Math Calculator

No authHTTPSNo CORS

Noctua

REST API used to access NoctuaSky features

No authHTTPSCORS ?

$Numbers logo$

Numbers

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

apiKeyHTTPSNo CORS

OBIS

Global marine species occurrence and distribution data

No authHTTPSCORS

Ocean Facts

Facts pertaining to the physical science of Oceanography

No authHTTPSCORS ?

Oliver's mTOR Atlas

Curated mTOR research: studies by evidence type, pathway claims, open questions

No authHTTPSCORS

Open Ephemeris

Sub-arcsecond planetary positions, natal charts, transits, and Human Design from NASA JPL DE440

apiKeyHTTPSNo CORS

Open Notify

ISS astronauts, current location, etc

No authNo HTTPSNo CORS

Open Science Framework

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

No authHTTPSCORS ?

OpenAlex

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

No authHTTPSCORS

OrbitalWiki

Catalog of 16,000+ satellites merging CelesTrak, GCAT, Wikidata; free tier included

apiKeyHTTPSCORS

Purple Air

Real Time Air Quality Monitoring

No authHTTPSCORS ?

RCSB PDB

3D structures of proteins and nucleic acids

No authHTTPSCORS

Remote Calc

Decodes base64 encoding and parses it to return a solution to the calculation in JSON

No authHTTPSCORS

SatNOGS

Satellite observations from open ground stations

No authHTTPSCORS ?

Semantic Scholar

Academic search engine for papers, authors, and citations

No authHTTPSCORS ?

A free, open, dataset about research and scholarly activities

No authHTTPSNo CORS

Solar System OpenData

Data and facts on solar system bodies and planets

No authHTTPSCORS

SpaceX

Company, vehicle, launchpad and launch data

No authHTTPSNo CORS

SpaceX

GraphQL, Company, Ships, launchpad and launch data

No authHTTPSCORS ?

Sunrise and Sunset

Sunset and sunrise times for a given latitude and longitude

No authHTTPSNo CORS

Tallytopia

Calculators for finance, health, math, space and sports with step-by-step results

No authHTTPSCORS

Times Adder

With this API you can add each of the times introduced in the array sended

No authHTTPSNo CORS

TLE

Satellite information

No authHTTPSNo CORS

Unpaywall

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

No authHTTPSCORS

USGS Earthquake Hazards Program

Earthquakes data real-time

No authHTTPSNo CORS

USGS Water Services

Water quality and level info for rivers and lakes

No authHTTPSNo CORS

VedIntel™ AstroAPI

Vedic astrology computation — birth charts, dashas, panchang, AI narratives

apiKeyHTTPSCORS

World Bank

World Data

No authHTTPSNo CORS

WoRMS

Marine species taxonomy, synonyms and distributions

No authHTTPSNo CORS

xMath

Random mathematical expressions

No authHTTPSCORS

Science & Math API FAQ

How many free Science & Math APIs are there?

There are 59 free public Science & Math APIs in the directory. 57 support HTTPS, 26 are confirmed to allow CORS and 51 need no API key.

Which Science & Math APIs work without an API key?

51 Science & Math APIs need no authentication, including arcsecond.io, arXiv, Botlero and Chempirical. You can call them straight away without signing up.

Which Science & Math APIs can I call from the browser?

APIs with CORS enabled can be called directly from front-end JavaScript. In Science & Math, that includes Botlero, Chempirical, CycleCalcs and DataCite.

Science & Math API FAQ

How many free Science & Math APIs are there?

There are 59 free public Science & Math APIs in the directory. 57 support HTTPS, 26 are confirmed to allow CORS and 51 need no API key.

Which Science & Math APIs work without an API key?

51 Science & Math APIs need no authentication, including arcsecond.io, arXiv, Botlero and Chempirical. You can call them straight away without signing up.

Which Science & Math APIs can I call from the browser?

APIs with CORS enabled can be called directly from front-end JavaScript. In Science & Math, that includes Botlero, Chempirical, CycleCalcs and DataCite.