ISRO vs Newton

Same instrument, two spec sheets — measured, not claimed.

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms369323
P95 · ms12501633
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ISRO vs Newton: common questions

Which is more reliable, ISRO or Newton?

Both are neck-and-neck — ISRO and Newton each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, ISRO or Newton?

Newton has the lower median latency in our checks — ISRO responds in 369 ms versus Newton at 323 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do ISRO and Newton need an API key?

Neither needs a paid key — ISRO is callable with no signup, and Newton is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call ISRO and Newton from the browser?

Yes — both ISRO and Newton send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are ISRO and Newton free for commercial use?

ISRO has unclear commercial terms, and Newton has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.