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ColorMagic vs Sirv

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

APIColorMagicNEW—SirvNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
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

ColorMagic vs Sirv: common questions

Which is more reliable, ColorMagic or Sirv?

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

ColorMagic needs no key, while Sirv requires a free API key. If you want to start calling without signup, reach for ColorMagic first.

Can I call ColorMagic and Sirv from the browser?

Yes — both ColorMagic and Sirv 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 ColorMagic and Sirv free for commercial use?

ColorMagic has unclear commercial terms, and Sirv 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.