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Pokefact API vs TETR.IO

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

APIPokefact APIHEALTHY80TETR.IOHEALTHY96
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms1757357
P95 · ms2575906
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree, no API key
Rate limitUnpublishedHonor server-provided cache expiry (~60s); docs require caching
In directory since2026-07-052026-07-05
operationalpartialdownno data

Pokefact API vs TETR.IO: common questions

Which is more reliable, Pokefact API or TETR.IO?

Both are neck-and-neck — Pokefact API and TETR.IO 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, Pokefact API or TETR.IO?

TETR.IO has the lower median latency in our checks — Pokefact API responds in 1757 ms versus TETR.IO at 357 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 Pokefact API and TETR.IO need an API key?

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

Can I call Pokefact API and TETR.IO from the browser?

Yes — both Pokefact API and TETR.IO 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 Pokefact API and TETR.IO free for commercial use?

Pokefact API has unclear commercial terms, and TETR.IO 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.