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Covid Tracking Project vs Lexigram

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

APICovid Tracking ProjectNEW—LexigramNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseCC BY 4.0Unverified
Free tierFree — no key required (archived dataset)Free tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Covid Tracking Project vs Lexigram: common questions

Which is more reliable, Covid Tracking Project or Lexigram?

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

Covid Tracking Project needs no key, while Lexigram requires a free API key. If you want to start calling without signup, reach for Covid Tracking Project first.

Can I call Covid Tracking Project and Lexigram from the browser?

Only Covid Tracking Project is browser-friendly — it returns CORS headers over HTTPS. Lexigram needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Covid Tracking Project and Lexigram free for commercial use?

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