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OOPSpam vs Serialif Color

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

APIOOPSpamNEW—Serialif ColorNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limit1000 req/window · 999 remainingUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OOPSpam vs Serialif Color: common questions

Which is more reliable, OOPSpam or Serialif Color?

On our scheduled checks, Serialif Color leads on measured uptime — OOPSpam at —% versus Serialif Color 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 OOPSpam and Serialif Color need an API key?

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

Can I call OOPSpam and Serialif Color from the browser?

Neither sends browser-friendly CORS headers reliably, so call OOPSpam and Serialif Color from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are OOPSpam and Serialif Color free for commercial use?

OOPSpam has unclear commercial terms, and Serialif Color 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.