iNaturalist vs RandomDuck

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

Uptime · 30d
Uptime · 90d24.7%99.44%
Uptime · 30d20.7%100%
P50 · ms689289
P95 · ms17711863
Authnonenone
CORSyesno
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

iNaturalist vs RandomDuck: common questions

Which is more reliable, iNaturalist or RandomDuck?

On our scheduled checks, RandomDuck leads on measured uptime — iNaturalist at 24.7% versus RandomDuck at 99.44% 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, iNaturalist or RandomDuck?

RandomDuck has the lower median latency in our checks — iNaturalist responds in 689 ms versus RandomDuck at 289 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 iNaturalist and RandomDuck need an API key?

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

Can I call iNaturalist and RandomDuck from the browser?

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

Are iNaturalist and RandomDuck free for commercial use?

iNaturalist has unclear commercial terms, and RandomDuck 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.