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MMO Games vs Open5e

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

APIMMO GamesNEW—Open5eNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedSRD content under OGL 1.0a; API/site MIT-licensed
Free tierFree, no API keyFree, no API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

MMO Games vs Open5e: common questions

Which is more reliable, MMO Games or Open5e?

On our scheduled checks, Open5e leads on measured uptime — MMO Games at —% versus Open5e 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 Open5e need an API key?

Neither needs a paid key — MMO Games is callable with no signup, and Open5e is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call MMO Games and Open5e from the browser?

Only Open5e 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 Open5e free for commercial use?

MMO Games has unclear commercial terms, and Open5e 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.