Open5e vs Yu-Gi-Oh!

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

Uptime · 30d
Uptime · 90d88.8%97.8%
Uptime · 30d93.1%96.6%
P50 · ms198208
P95 · ms43084794
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseSRD content under OGL 1.0a; API/site MIT-licensedUnverified (Konami IP)
Free tierFree, no API key requiredFree, no API key
Rate limitUnpublished20 requests per second per IP (documented)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Open5e vs Yu-Gi-Oh!: common questions

Which is more reliable, Open5e or Yu-Gi-Oh!?

On our scheduled checks, Yu-Gi-Oh! leads on measured uptime — Open5e at 88.8% versus Yu-Gi-Oh! at 97.8% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Open5e or Yu-Gi-Oh!?

Open5e has the lower median latency in our checks — Open5e responds in 198 ms versus Yu-Gi-Oh! at 208 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Open5e and Yu-Gi-Oh! need an API key?

Neither needs a paid key — Open5e is callable with no signup, and Yu-Gi-Oh! is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Open5e and Yu-Gi-Oh! from the browser?

Yes — both Open5e and Yu-Gi-Oh! 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 Open5e and Yu-Gi-Oh! free for commercial use?

Open5e has unclear commercial terms, and Yu-Gi-Oh! 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.