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Free Public APIs API vs IBM X-Force Exchange API

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

APIFree Public APIs APINEW—IBM X-Force Exchange APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Free Public APIs API vs IBM X-Force Exchange API: common questions

Which is more reliable, Free Public APIs API or IBM X-Force Exchange API?

On our scheduled checks, IBM X-Force Exchange API leads on measured uptime — Free Public APIs API at —% versus IBM X-Force Exchange API at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Free Public APIs API and IBM X-Force Exchange API need an API key?

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

Can I call Free Public APIs API and IBM X-Force Exchange API from the browser?

Only Free Public APIs API 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 Free Public APIs API and IBM X-Force Exchange API free for commercial use?

Free Public APIs API has unclear commercial terms, and IBM X-Force Exchange 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.