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OOPSpam vs VATlayer

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

APIOOPSpamHEALTHY98VATlayerHEALTHY93
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms217473
P95 · ms3602118
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limit1000 req/window · 999 remainingUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OOPSpam vs VATlayer: common questions

Which is more reliable, OOPSpam or VATlayer?

Both are neck-and-neck — OOPSpam and VATlayer each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, OOPSpam or VATlayer?

OOPSpam has the lower median latency in our checks — OOPSpam responds in 217 ms versus VATlayer at 473 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do OOPSpam and VATlayer need an API key?

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

Can I call OOPSpam and VATlayer from the browser?

Neither sends browser-friendly CORS headers reliably, so call OOPSpam and VATlayer 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 VATlayer free for commercial use?

OOPSpam has unclear commercial terms, and VATlayer 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.