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Markbase vs ValueRay

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

APIMarkbaseNEW—ValueRayNEW—
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 limit30 req/window · 29 remaining · resets 178351932450 req/window · 49 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

Markbase vs ValueRay: common questions

Which is more reliable, Markbase or ValueRay?

On our scheduled checks, ValueRay leads on measured uptime — Markbase at —% versus ValueRay 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 Markbase and ValueRay need an API key?

Neither needs a paid key — Markbase is callable with no signup, and ValueRay is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Markbase and ValueRay from the browser?

Yes — both Markbase and ValueRay 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 Markbase and ValueRay free for commercial use?

Markbase has unclear commercial terms, and ValueRay 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.