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Fake JSON API vs jsDelivr

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

APIFake JSON APINEW—jsDelivrNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree, no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Fake JSON API vs jsDelivr: common questions

Which is more reliable, Fake JSON API or jsDelivr?

On our scheduled checks, jsDelivr leads on measured uptime — Fake JSON API at —% versus jsDelivr 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 Fake JSON API and jsDelivr need an API key?

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

Can I call Fake JSON API and jsDelivr from the browser?

Yes — both Fake JSON API and jsDelivr 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 Fake JSON API and jsDelivr free for commercial use?

Fake JSON API has unclear commercial terms, and jsDelivr 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.