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PermisAPI vs USAspending.gov

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

APIPermisAPINEW—USAspending.govNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedU.S. Government Work (public domain)
Free tierFree tier — API key may be required for productionFree — no key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

PermisAPI vs USAspending.gov: common questions

Which is more reliable, PermisAPI or USAspending.gov?

On our scheduled checks, USAspending.gov leads on measured uptime — PermisAPI 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 PermisAPI and USAspending.gov need an API key?

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

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

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

Are PermisAPI and USAspending.gov free for commercial use?

PermisAPI has unclear commercial terms, 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.