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Global Shark Attack API vs RSQ API

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

APIGlobal Shark Attack APIHEALTHY91RSQ APIHEALTHY91
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms719783
P95 · ms17941387
Authnonenone
CORSyesyes
HTTPSyesno
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

Global Shark Attack API vs RSQ API: common questions

Which is more reliable, Global Shark Attack API or RSQ API?

Both are neck-and-neck — Global Shark Attack API and RSQ API 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, Global Shark Attack API or RSQ API?

Global Shark Attack API has the lower median latency in our checks — Global Shark Attack API responds in 719 ms versus RSQ API at 783 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 Global Shark Attack API and RSQ API need an API key?

Neither needs a paid key — Global Shark Attack API is callable with no signup, and RSQ API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Global Shark Attack API and RSQ API from the browser?

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

Are Global Shark Attack API and RSQ API free for commercial use?

Global Shark Attack API has unclear commercial terms, and RSQ API 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.