API archive entry · source-reported
Minor Planet Center
Asterank.com Information
Other Science & Math APIs
These records share a directory category and are ordered by similarity of reported access facts. They are a shortlist, not proof of drop-in compatibility.
Numbers
Facts about numbers
No auth · HTTPS unconfirmed · CORS No
Open Notify
ISS astronauts, current location, etc
No auth · HTTPS unconfirmed · CORS No
KEGG
Genes, pathways, compounds and reactions
No auth · HTTPS reported · CORS Unknown
SatNOGS
Satellite observations from open ground stations
No auth · HTTPS reported · CORS Unknown
arXiv
Curated research-sharing platform: physics, mathematics, quantitative finance, and economics
No auth · HTTPS reported · CORS Unknown
Launch Library
Upcoming Space Launches
No auth · HTTPS reported · CORS Unknown
How to compare them
Coverage
Compare exact endpoints, fields, geography, history, and update frequency.
Operating cost
Model request volume, caching, overages, support, and migration cost.
Integration risk
Test auth, errors, pagination, latency, versioning, and outage behavior.
Data rights
Review attribution, redistribution, retention, privacy, and commercial-use terms.
Source reference
This page separates source-reported facts from questions that need live provider verification.