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City, Analyze Boston vs Federal Register

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

APICity, Analyze BostonNEW—Federal RegisterNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedUS Government work — public domain
Free tierFree tier — API key requiredFree — no key or signup required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

City, Analyze Boston vs Federal Register: common questions

Which is more reliable, City, Analyze Boston or Federal Register?

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

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

Can I call City, Analyze Boston and Federal Register from the browser?

Only Federal Register 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 Federal Register free for commercial use?

City, Analyze Boston has unclear commercial terms, and Federal Register 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.