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HTTPie vs SLA Uptime Calculator

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

APIHTTPieHEALTHY96SLA Uptime CalculatorHEALTHY82
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms2721373
P95 · ms20162741
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

HTTPie vs SLA Uptime Calculator: common questions

Which is more reliable, HTTPie or SLA Uptime Calculator?

Both are neck-and-neck — HTTPie and SLA Uptime Calculator 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, HTTPie or SLA Uptime Calculator?

HTTPie has the lower median latency in our checks — HTTPie responds in 272 ms versus SLA Uptime Calculator at 1373 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 HTTPie and SLA Uptime Calculator need an API key?

Neither needs a paid key — HTTPie is callable with no signup, and SLA Uptime Calculator is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call HTTPie and SLA Uptime Calculator from the browser?

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

Are HTTPie and SLA Uptime Calculator free for commercial use?

HTTPie has unclear commercial terms, and SLA Uptime Calculator 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.