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Abstract API vs DownStatus

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

APIAbstract APIHEALTHY89DownStatusDYING73
Uptime · 30d
Uptime · 90d99.02%60.8%
Uptime · 30d98.3%33.3%
P50 · ms700589
P95 · ms16561295
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — no API key (per docs)
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Abstract API vs DownStatus: common questions

Which is more reliable, Abstract API or DownStatus?

On our scheduled checks, Abstract API leads on measured uptime — Abstract API at 99.02% versus DownStatus at 60.8% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Abstract API or DownStatus?

DownStatus has the lower median latency in our checks — Abstract API responds in 700 ms versus DownStatus at 589 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 Abstract API and DownStatus need an API key?

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

Can I call Abstract API and DownStatus from the browser?

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

Are Abstract API and DownStatus free for commercial use?

Abstract API has unclear commercial terms, and DownStatus 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.