Unpaywall API alternatives
12 other science & math APIs compared on authentication, HTTPS, CORS and documented endpoints.
| API | Auth | HTTPS | CORS | Endpoints |
|---|---|---|---|---|
| Unpaywall | No auth | Yes | Yes | — |
| NASA | No auth | Yes | Yes | — |
| arXiv | No auth | Yes | Unknown | — |
| NASA ADS | OAuth | Yes | Yes | — |
| USGS Earthquake Hazards Program | No auth | Yes | No | — |
| CORE | API key | Yes | Unknown | 18 |
| USGS Water Services | No auth | Yes | No | — |
| Semantic Scholar | No auth | Yes | Unknown | — |
| Open Science Framework | No auth | Yes | Unknown | — |
| iNaturalist | No auth | Yes | Yes | — |
| SHARE | No auth | Yes | No | — |
| ISRO | No auth | Yes | No | — |
| RCSB PDB | No auth | Yes | Yes | — |
NASA
Science & MathNASA data, including imagery
No authCORS
arXiv
Science & MathCurated research-sharing platform: physics, mathematics, quantitative finance, and economics
No auth
NASA ADS
Science & MathNASA Astrophysics Data System
OAuthCORS
USGS Earthquake Hazards Program
Science & MathEarthquakes data real-time
No auth
CORE
Science & MathAccess the world's Open Access research papers
API key18 endpoints
USGS Water Services
Science & MathWater quality and level info for rivers and lakes
No auth
Semantic Scholar
Science & MathAcademic search engine for papers, authors, and citations
No auth
Open Science Framework
Science & MathRepository and archive for study designs, research materials, data, manuscripts, etc
No auth
iNaturalist
Science & MathCitizen-science wildlife observations with species identification and mapping
No authCORS
SHARE
Science & MathA free, open, dataset about research and scholarly activities
No auth
ISRO
Science & MathISRO Space Crafts Information
No auth
RCSB PDB
Science & Math3D structures of proteins and nucleic acids
No authCORS