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Keen IO vs Launch Library 2

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

APIKeen IONEW—Launch Library 2NEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — no key (The Space Devs LL2)
Rate limitUnpublishedAnonymous requests are throttled to a low rate (see docs)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Keen IO vs Launch Library 2: common questions

Which is more reliable, Keen IO or Launch Library 2?

On our scheduled checks, Launch Library 2 leads on measured uptime — Keen IO at —% versus Launch Library 2 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 Keen IO and Launch Library 2 need an API key?

Launch Library 2 needs no key, while Keen IO requires a free API key. If you want to start calling without signup, reach for Launch Library 2 first.

Can I call Keen IO and Launch Library 2 from the browser?

Only Launch Library 2 is browser-friendly — it returns CORS headers over HTTPS. Keen IO needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Keen IO and Launch Library 2 free for commercial use?

Keen IO has unclear commercial terms, and Launch Library 2 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.