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Fake JSON API vs Sheet2API

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

APIFake JSON APIHEALTHY88Sheet2APIHEALTHY79
Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d98.3%98.3%
P50 · ms8653070
P95 · ms20064902
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Fake JSON API vs Sheet2API: common questions

Which is more reliable, Fake JSON API or Sheet2API?

Both are neck-and-neck — Fake JSON API and Sheet2API each measure 99.02% 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, Fake JSON API or Sheet2API?

Fake JSON API has the lower median latency in our checks — Fake JSON API responds in 865 ms versus Sheet2API at 3070 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 Fake JSON API and Sheet2API need an API key?

Fake JSON API needs no key, while Sheet2API requires a free API key. If you want to start calling without signup, reach for Fake JSON API first.

Can I call Fake JSON API and Sheet2API from the browser?

Yes — both Fake JSON API and Sheet2API 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 Sheet2API free for commercial use?

Fake JSON API has unclear commercial terms, and Sheet2API 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.