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Mediastack vs Spaceflight News

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

APIMediastackHEALTHY93Spaceflight NewsHEALTHY63
Uptime · 30d
Uptime · 90d100%95.1%
Uptime · 30d100%91.7%
P50 · ms449864
P95 · ms13564497
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

Mediastack vs Spaceflight News: common questions

Which is more reliable, Mediastack or Spaceflight News?

On our scheduled checks, Mediastack leads on measured uptime — Mediastack at 100% 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, Mediastack or Spaceflight News?

Mediastack has the lower median latency in our checks — Mediastack responds in 449 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 Mediastack and Spaceflight News need an API key?

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

Can I call Mediastack and Spaceflight News from the browser?

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

Are Mediastack and Spaceflight News free for commercial use?

Mediastack 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.