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MMO Games vs TETR.IO

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

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

MMO Games vs TETR.IO: common questions

Which is more reliable, MMO Games or TETR.IO?

On our scheduled checks, TETR.IO leads on measured uptime — MMO Games 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 MMO Games and TETR.IO need an API key?

Neither needs a paid key — MMO Games 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 MMO Games and TETR.IO from the browser?

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

Are MMO Games and TETR.IO free for commercial use?

MMO Games 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.