NPPES vs TourneyRadar
Same instrument, two spec sheets — measured, not claimed.
NPPES vs TourneyRadar: common questions
Which is more reliable, NPPES or TourneyRadar?
On our scheduled checks, TourneyRadar leads on measured uptime — NPPES at —% versus TourneyRadar 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 TourneyRadar need an API key?
Neither needs a paid key — NPPES is callable with no signup, and TourneyRadar is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call NPPES and TourneyRadar from the browser?
Only TourneyRadar 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 TourneyRadar free for commercial use?
NPPES allows commercial use on its free tier, and TourneyRadar 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.