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CEORater API vs Data Dragon API

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

APICEORater APINEW—Data Dragon APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CEORater API vs Data Dragon API: common questions

Which is more reliable, CEORater API or Data Dragon API?

On our scheduled checks, Data Dragon API leads on measured uptime — CEORater API at —% versus Data Dragon API 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 CEORater API and Data Dragon API need an API key?

Neither needs a paid key — CEORater API is callable with no signup, and Data Dragon API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call CEORater API and Data Dragon API from the browser?

Only Data Dragon API is browser-friendly — it returns CORS headers over HTTPS. CEORater API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are CEORater API and Data Dragon API free for commercial use?

CEORater API has unclear commercial terms, and Data Dragon API 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.