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Data.gov vs PermisAPI

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

APIData.govNEW—PermisAPINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Data.gov vs PermisAPI: common questions

Which is more reliable, Data.gov or PermisAPI?

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

Data.gov needs no key, while PermisAPI requires a free API key. If you want to start calling without signup, reach for Data.gov first.

Can I call Data.gov and PermisAPI from the browser?

Neither sends browser-friendly CORS headers reliably, so call Data.gov and PermisAPI from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Data.gov and PermisAPI free for commercial use?

Data.gov has unclear commercial terms, and PermisAPI 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.