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TETR.IO vs Astroworld

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

APITETR.IONEW—AstroworldNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (Minecraft game data; Mojang content)
Free tierFree, no API keyFree — no key
Rate limitHonor server-provided cache expiry (~60s); docs require caching100 req/window · 99 remaining · resets 60
In directory since2026-07-052026-07-05
operationalpartialdownno data

TETR.IO vs Astroworld: common questions

Which is more reliable, TETR.IO or Astroworld?

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

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

Can I call TETR.IO and Astroworld from the browser?

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

TETR.IO has unclear commercial terms, and Astroworld 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.