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Micro User Service vs Spaceflight News

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

APIMicro User ServiceDEAD0Spaceflight NewsHEALTHY63
Uptime · 30d
Uptime · 90d18.6%95.1%
Uptime · 30d0.0%91.7%
P50 · ms231864
P95 · ms8274497
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (links/metadata for third-party news)
Free tierFree tier — key may be requiredFree — no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Micro User Service vs Spaceflight News: common questions

Which is more reliable, Micro User Service or Spaceflight News?

On our scheduled checks, Spaceflight News leads on measured uptime — Micro User Service at 18.6% versus Spaceflight News at 95.1% 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, Micro User Service or Spaceflight News?

Micro User Service has the lower median latency in our checks — Micro User Service responds in 231 ms versus Spaceflight News at 864 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 Micro User Service and Spaceflight News need an API key?

Spaceflight News needs no key, while Micro User Service requires a free API key. If you want to start calling without signup, reach for Spaceflight News first.

Can I call Micro User Service and Spaceflight News from the browser?

Only Spaceflight News is browser-friendly — it returns CORS headers over HTTPS. Micro User Service needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Micro User Service and Spaceflight News free for commercial use?

Micro User Service has unclear commercial terms, and Spaceflight News 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.