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NeoWs - (Near Earth Object Web Service) vs Zen Quotes

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

APINeoWs - (Near Earth Object Web Service)HEALTHY68Zen QuotesHEALTHY74
Uptime · 30d
Uptime · 90d97.1%90.2%
Uptime · 30d95.0%86.7%
P50 · ms7371657
P95 · ms30194714
Authnonenone
CORSyesno
HTTPSnoyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — no key
Rate limitSee documentationRate-limited on the free tier (see zenquotes.io)
In directory since2026-07-052026-07-05
operationalpartialdownno data

NeoWs - (Near Earth Object Web Service) vs Zen Quotes: common questions

Which is more reliable, NeoWs - (Near Earth Object Web Service) or Zen Quotes?

On our scheduled checks, NeoWs - (Near Earth Object Web Service) leads on measured uptime — NeoWs - (Near Earth Object Web Service) at 97.1% versus Zen Quotes at 90.2% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, NeoWs - (Near Earth Object Web Service) or Zen Quotes?

NeoWs - (Near Earth Object Web Service) has the lower median latency in our checks — NeoWs - (Near Earth Object Web Service) responds in 737 ms versus Zen Quotes at 1657 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 NeoWs - (Near Earth Object Web Service) and Zen Quotes need an API key?

Neither needs a paid key — NeoWs - (Near Earth Object Web Service) is callable with no signup, and Zen Quotes is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call NeoWs - (Near Earth Object Web Service) and Zen Quotes from the browser?

Neither sends browser-friendly CORS headers reliably, so call NeoWs - (Near Earth Object Web Service) and Zen Quotes from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are NeoWs - (Near Earth Object Web Service) and Zen Quotes free for commercial use?

NeoWs - (Near Earth Object Web Service) has unclear commercial terms, and Zen Quotes 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.