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Kraken vs Alpha (Mossland)

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

APIKrakenNEW—Alpha (Mossland)NEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Kraken vs Alpha (Mossland): common questions

Which is more reliable, Kraken or Alpha (Mossland)?

On our scheduled checks, Alpha (Mossland) leads on measured uptime — Kraken at —% versus Alpha (Mossland) 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 Kraken and Alpha (Mossland) need an API key?

Neither needs a paid key — Kraken is callable with no signup, and Alpha (Mossland) is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Kraken and Alpha (Mossland) from the browser?

Yes — both Kraken and Alpha (Mossland) send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Kraken and Alpha (Mossland) free for commercial use?

Kraken has unclear commercial terms, and Alpha (Mossland) 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.