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Spaceflight News vs ValidEU API

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

APISpaceflight NewsHEALTHY63ValidEU APIHEALTHY97
Uptime · 30d
Uptime · 90d95.1%100%
Uptime · 30d91.7%100%
P50 · ms864273
P95 · ms4497786
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (links/metadata for third-party news)Unverified
Free tierFree — no keyFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Spaceflight News vs ValidEU API: common questions

Which is more reliable, Spaceflight News or ValidEU API?

On our scheduled checks, ValidEU API leads on measured uptime — Spaceflight News at 95.1% versus ValidEU API at 100% 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, Spaceflight News or ValidEU API?

ValidEU API has the lower median latency in our checks — Spaceflight News responds in 864 ms versus ValidEU API at 273 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 Spaceflight News and ValidEU API need an API key?

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

Can I call Spaceflight News and ValidEU API from the browser?

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

Are Spaceflight News and ValidEU API free for commercial use?

Spaceflight News has unclear commercial terms, and ValidEU API 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.