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BMI Calculator API vs Data Dragon API

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

APIBMI Calculator APINEW—Data Dragon APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
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

BMI Calculator API vs Data Dragon API: common questions

Which is more reliable, BMI Calculator API or Data Dragon API?

On our scheduled checks, Data Dragon API leads on measured uptime — BMI Calculator 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 BMI Calculator API and Data Dragon API need an API key?

Neither needs a paid key — BMI Calculator 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 BMI Calculator API and Data Dragon API from the browser?

Yes — both BMI Calculator API and Data Dragon API 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 BMI Calculator API and Data Dragon API free for commercial use?

BMI Calculator 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.