shipapis
StarSubmit an APISubmit API

SuperHeroes vs TETR.IO

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

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

SuperHeroes vs TETR.IO: common questions

Which is more reliable, SuperHeroes or TETR.IO?

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

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

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

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

SuperHeroes 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.