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Open Government, UK vs USAspending.gov

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

APIOpen Government, UKNEW—USAspending.govNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useyesyes
Data licenseOpen Government Licence v3.0 (varies per dataset)U.S. Government Work (public domain)
Free tierFree — limits not publishedFree — no key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Open Government, UK vs USAspending.gov: common questions

Which is more reliable, Open Government, UK or USAspending.gov?

On our scheduled checks, USAspending.gov leads on measured uptime — Open Government, UK at —% versus USAspending.gov 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 Open Government, UK and USAspending.gov need an API key?

Neither needs a paid key — Open Government, UK is callable with no signup, and USAspending.gov is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Open Government, UK and USAspending.gov from the browser?

Only Open Government, UK is browser-friendly — it returns CORS headers over HTTPS. USAspending.gov needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Open Government, UK and USAspending.gov free for commercial use?

Open Government, UK allows commercial use on its free tier, and USAspending.gov 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.