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F1 API vs Healthcare.gov

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

APIF1 APINEW—Healthcare.govNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedU.S. Government content (CMS)
Free tierFree — limits not publishedFree — no key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

F1 API vs Healthcare.gov: common questions

Which is more reliable, F1 API or Healthcare.gov?

On our scheduled checks, Healthcare.gov leads on measured uptime — F1 API at —% versus Healthcare.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 F1 API and Healthcare.gov need an API key?

Neither needs a paid key — F1 API is callable with no signup, and Healthcare.gov is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call F1 API and Healthcare.gov from the browser?

Only F1 API is browser-friendly — it returns CORS headers over HTTPS. Healthcare.gov needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are F1 API and Healthcare.gov free for commercial use?

F1 API has unclear commercial terms, and Healthcare.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.