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City, Analyze Boston vs Data USA

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

APICity, Analyze BostonNEW—Data USANEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

City, Analyze Boston vs Data USA: common questions

Which is more reliable, City, Analyze Boston or Data USA?

On our scheduled checks, Data USA leads on measured uptime — City, Analyze Boston at —% versus Data USA 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 City, Analyze Boston and Data USA need an API key?

Data USA needs no key, while City, Analyze Boston requires a free API key. If you want to start calling without signup, reach for Data USA first.

Can I call City, Analyze Boston and Data USA from the browser?

Only Data USA is browser-friendly — it returns CORS headers over HTTPS. City, Analyze Boston needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are City, Analyze Boston and Data USA free for commercial use?

City, Analyze Boston has unclear commercial terms, and Data USA 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.