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OOPSpam vs Supadata

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

APIOOPSpamNEW—SupadataNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limit1000 req/window · 999 remainingUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OOPSpam vs Supadata: common questions

Which is more reliable, OOPSpam or Supadata?

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

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

Can I call OOPSpam and Supadata from the browser?

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

Are OOPSpam and Supadata free for commercial use?

OOPSpam has unclear commercial terms, and Supadata 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.