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Covid Tracking Project vs Data Dragon API

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

APICovid Tracking ProjectNEW—Data Dragon APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseCC BY 4.0Unverified
Free tierFree — no key required (archived dataset)Free — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Covid Tracking Project vs Data Dragon API: common questions

Which is more reliable, Covid Tracking Project or Data Dragon API?

On our scheduled checks, Data Dragon API leads on measured uptime — Covid Tracking Project 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 Covid Tracking Project and Data Dragon API need an API key?

Neither needs a paid key — Covid Tracking Project 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 Covid Tracking Project and Data Dragon API from the browser?

Yes — both Covid Tracking Project 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 Covid Tracking Project and Data Dragon API free for commercial use?

Covid Tracking Project allows commercial use on its free tier, 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.