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IBM X-Force Exchange API vs Spaceflight News

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

APIIBM X-Force Exchange APIHEALTHY96Spaceflight NewsHEALTHY63
Uptime · 30d
Uptime · 90d98.0%95.1%
Uptime · 30d98.3%91.7%
P50 · ms238864
P95 · ms8684497
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (links/metadata for third-party news)
Free tierFree tier — API key requiredFree — no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

IBM X-Force Exchange API vs Spaceflight News: common questions

Which is more reliable, IBM X-Force Exchange API or Spaceflight News?

On our scheduled checks, IBM X-Force Exchange API leads on measured uptime — IBM X-Force Exchange API at 98.0% 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, IBM X-Force Exchange API or Spaceflight News?

IBM X-Force Exchange API has the lower median latency in our checks — IBM X-Force Exchange API responds in 238 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 IBM X-Force Exchange API and Spaceflight News need an API key?

Spaceflight News needs no key, while IBM X-Force Exchange API requires a free API key. If you want to start calling without signup, reach for Spaceflight News first.

Can I call IBM X-Force Exchange API and Spaceflight News from the browser?

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

Are IBM X-Force Exchange API and Spaceflight News free for commercial use?

IBM X-Force Exchange API 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.