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GraphHopper vs NHTSA

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

APIGraphHopperNEW—NHTSANEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic domain (U.S. Government work)
Free tierFree tier — API key requiredFree, no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

GraphHopper vs NHTSA: common questions

Which is more reliable, GraphHopper or NHTSA?

On our scheduled checks, NHTSA leads on measured uptime — GraphHopper at —% versus NHTSA 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 GraphHopper and NHTSA need an API key?

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

Can I call GraphHopper and NHTSA from the browser?

Yes — both GraphHopper and NHTSA send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are GraphHopper and NHTSA free for commercial use?

GraphHopper has unclear commercial terms, and NHTSA 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.