Science and math
60 in APIs and services, A to Z. The best-known ones are listed on APIs and services.
- arcsecond.io Multiple astronomy data sources
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arXiv Curated research-sharing platform: physics, mathematics, quantitative finance, and economics - Botlero Sourced, quoted specs for humanoid robots
- Chempirical Chemical compounds with physical data, reactions and substructure search
- CodeCogs Render LaTeX equations in PNG, GIF, SVG, EMF, PDF, JSON, or download formats with styling options
- CORE Access the world's Open Access research papers
- CycleCalcs Interpreted astronomy: sun and moon times, moon phases, planets, eclipses, seasons
- DataCite Search and retrieve DOI metadata for research datasets and publications
- ENA Nucleotide sequences, genomes and raw reads archive
- Europe PMC Life-science literature search with abstracts, citations and full-text links
- GBIF Global Biodiversity Information Facility
- iDigBio Access millions of museum specimens from organizations around the world
- iNaturalist Citizen-science wildlife observations with species identification and mapping
- inspirehep.net High Energy Physics info. system
- isEven (humor) Check if a number is even
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ISRO ISRO Space Crafts Information - ITIS Integrated Taxonomic Information System
- KEGG Genes, pathways, compounds and reactions
- Launch Library 2 Spaceflight launches and events database
- Macrostrat Geologic maps, rock columns and stratigraphy data
- Materials Platform for Data Science Curated experimental data for materials science
- MathJS Evaluate math expressions via GET or POST as JSON
- Minor Planet Center Asterank.com Information
- Molicheck Anonymous JSON lab/GMP calculators (molarity, dilution, ICH limits); no API key
- MyGene.info Gene annotation queries and ID lookup
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NASA NASA data, including imagery - NASA ADS NASA Astrophysics Data System
- NASA InSight Mars weather data from InSight lander
- NCBI E-utilities Biomedical literature, sequences and gene databases
- Newton Symbolic and Arithmetic Math Calculator
- Noctua REST API used to access NoctuaSky features
- Numbers Number of the day, random number, number facts and anything else you want to do with numbers
- OBIS Global marine species occurrence and distribution data
- Ocean Facts Facts pertaining to the physical science of Oceanography
- Oliver's mTOR Atlas Curated mTOR research: studies by evidence type, pathway claims, open questions
- Open Ephemeris Sub-arcsecond planetary positions, natal charts, transits, and Human Design from NASA JPL DE440
- Open Notify ISS astronauts, current location, etc
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Open Science Framework Repository and archive for study designs, research materials, data, manuscripts, etc - OpenAlex Open catalog of scholarly works, authors, institutions, sources, and concepts
- OrbitalWiki Catalog of 16,000+ satellites merging CelesTrak, GCAT, Wikidata; free tier included
- Purple Air Real Time Air Quality Monitoring
- RCSB PDB 3D structures of proteins and nucleic acids
- Remote Calc Decodes base64 encoding and parses it to return a solution to the calculation in JSON
- SatNOGS Satellite observations from open ground stations
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Semantic Scholar Academic search engine for papers, authors, and citations - SHARE A free, open, dataset about research and scholarly activities
- Solar System OpenData Data and facts on solar system bodies and planets
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SpaceX Company, vehicle, launchpad and launch data - SpaceX GraphQL, Company, Ships, launchpad and launch data
- Sunrise and Sunset Sunset and sunrise times for a given latitude and longitude
- Tallytopia Calculators for finance, health, math, space and sports with step-by-step results
- Times Adder With this API you can add each of the times introduced in the array sended
- TLE Satellite information
- Toolalize Unit and live currency conversion with NIST SI factors, no key needed
- Unpaywall Open-access status and legal full-text links for scholarly articles
- USGS Earthquake Hazards Program Earthquakes data real-time
- USGS Water Services Water quality and level info for rivers and lakes
- World Bank World Data
- WoRMS Marine species taxonomy, synonyms and distributions
- xMath Random mathematical expressions
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