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Game Brain vs TETR.IO

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

APIGame BrainNEW—TETR.IONEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree, no API key
Rate limitUnpublishedHonor server-provided cache expiry (~60s); docs require caching
In directory since2026-07-052026-07-05
operationalpartialdownno data

Game Brain vs TETR.IO: common questions

Which is more reliable, Game Brain or TETR.IO?

On our scheduled checks, TETR.IO leads on measured uptime — Game Brain at —% versus TETR.IO 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 Game Brain and TETR.IO need an API key?

TETR.IO needs no key, while Game Brain requires a free API key. If you want to start calling without signup, reach for TETR.IO first.

Can I call Game Brain and TETR.IO from the browser?

Yes — both Game Brain 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 Game Brain and TETR.IO free for commercial use?

Game Brain 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.