Cross Universe vs MMO Games

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (fan project)Unverified
Free tierFree — no keyFree, no API key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Cross Universe vs MMO Games: common questions

Which is more reliable, Cross Universe or MMO Games?

On our scheduled checks, MMO Games leads on measured uptime — Cross Universe at —% versus MMO Games 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 Cross Universe and MMO Games need an API key?

Neither needs a paid key — Cross Universe is callable with no signup, and MMO Games is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Cross Universe and MMO Games from the browser?

Only Cross Universe 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 Cross Universe and MMO Games free for commercial use?

Cross Universe has unclear commercial terms, and MMO Games 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.