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Covid Tracking Project vs MLB Records and Stats

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

APICovid Tracking ProjectNEW—MLB Records and StatsNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesno
Data licenseCC BY 4.0MLB Advanced Media copyright (see terms)
Free tierFree — no key required (archived dataset)Free — no key; subject to MLB copyright terms
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Covid Tracking Project vs MLB Records and Stats: common questions

Which is more reliable, Covid Tracking Project or MLB Records and Stats?

On our scheduled checks, MLB Records and Stats leads on measured uptime — Covid Tracking Project at —% versus MLB Records and Stats 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 MLB Records and Stats need an API key?

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

Can I call Covid Tracking Project and MLB Records and Stats from the browser?

Yes — both Covid Tracking Project and MLB Records and Stats 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 MLB Records and Stats free for commercial use?

Covid Tracking Project allows commercial use on its free tier, and MLB Records and Stats is personal/non-commercial only. 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.