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BMI Calculator API vs openFDA API

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

APIBMI Calculator APIHEALTHY80openFDA APIHEALTHY88
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms1350806
P95 · ms23141868
Authnonenone
CORSyesno
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 openFDA API: common questions

Which is more reliable, BMI Calculator API or openFDA API?

Both are neck-and-neck — BMI Calculator API and openFDA API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, BMI Calculator API or openFDA API?

openFDA API has the lower median latency in our checks — BMI Calculator API responds in 1350 ms versus openFDA API at 806 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 BMI Calculator API and openFDA API need an API key?

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

Can I call BMI Calculator API and openFDA API from the browser?

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

Are BMI Calculator API and openFDA API free for commercial use?

BMI Calculator API has unclear commercial terms, and openFDA 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.