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NPPES vs wger Workout

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

APINPPESNEW—wger WorkoutNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseU.S. Government (public NPI data)Unverified
Free tierFree — no key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

NPPES vs wger Workout: common questions

Which is more reliable, NPPES or wger Workout?

On our scheduled checks, wger Workout leads on measured uptime — NPPES at —% versus wger Workout 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 NPPES and wger Workout need an API key?

Neither needs a paid key — NPPES is callable with no signup, and wger Workout is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call NPPES and wger Workout from the browser?

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

Are NPPES and wger Workout free for commercial use?

NPPES allows commercial use on its free tier, and wger Workout 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.