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BMI Calculator API vs Covid Tracking Project

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

APIBMI Calculator APINEW—Covid Tracking ProjectNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedCC BY 4.0
Free tierFree — limits not publishedFree — no key required (archived dataset)
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

BMI Calculator API vs Covid Tracking Project: common questions

Which is more reliable, BMI Calculator API or Covid Tracking Project?

On our scheduled checks, Covid Tracking Project leads on measured uptime — BMI Calculator API at —% versus Covid Tracking Project 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 Covid Tracking Project need an API key?

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

Can I call BMI Calculator API and Covid Tracking Project from the browser?

Yes — both BMI Calculator API and Covid Tracking Project 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 Covid Tracking Project free for commercial use?

BMI Calculator API has unclear commercial terms, and Covid Tracking Project allows commercial use on its free tier. 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.