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Perplexity AI API vs USGS Earthquake Hazards Program

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

APIPerplexity AI APINEW—USGS Earthquake Hazards ProgramNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic domain (U.S. Government work)
Free tierFree tier — API key requiredFree — no API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Perplexity AI API vs USGS Earthquake Hazards Program: common questions

Which is more reliable, Perplexity AI API or USGS Earthquake Hazards Program?

On our scheduled checks, USGS Earthquake Hazards Program leads on measured uptime — Perplexity AI API at —% versus USGS Earthquake Hazards Program 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 Perplexity AI API and USGS Earthquake Hazards Program need an API key?

USGS Earthquake Hazards Program needs no key, while Perplexity AI API requires a free API key. If you want to start calling without signup, reach for USGS Earthquake Hazards Program first.

Can I call Perplexity AI API and USGS Earthquake Hazards Program from the browser?

Yes — both Perplexity AI API and USGS Earthquake Hazards Program send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Perplexity AI API and USGS Earthquake Hazards Program free for commercial use?

Perplexity AI API has unclear commercial terms, and USGS Earthquake Hazards Program allows commercial use on its free tier. 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.