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Data.gov vs REG-Vault

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

APIData.govNEW—REG-VaultNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Data.gov vs REG-Vault: common questions

Which is more reliable, Data.gov or REG-Vault?

On our scheduled checks, REG-Vault leads on measured uptime — Data.gov at —% versus REG-Vault 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 Data.gov and REG-Vault need an API key?

Neither needs a paid key — Data.gov is callable with no signup, and REG-Vault is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Data.gov and REG-Vault from the browser?

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

Are Data.gov and REG-Vault free for commercial use?

Data.gov has unclear commercial terms, and REG-Vault 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.