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NHTSA vs SBB Open Data

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

APINHTSAHEALTHY87SBB Open DataHEALTHY61
Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d100%98.3%
P50 · ms7601230
P95 · ms49022641
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licensePublic domain (U.S. Government work)Unverified
Free tierFree, no keyFree — limits not published
Rate limitUnpublished6000 req/window · 5999 remaining · resets 2026-07-09 00:00:00+00:00
In directory since2026-07-052026-07-05
operationalpartialdownno data

NHTSA vs SBB Open Data: common questions

Which is more reliable, NHTSA or SBB Open Data?

Both are neck-and-neck — NHTSA and SBB Open Data each measure 99.02% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, NHTSA or SBB Open Data?

NHTSA has the lower median latency in our checks — NHTSA responds in 760 ms versus SBB Open Data at 1230 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do NHTSA and SBB Open Data need an API key?

Neither needs a paid key — NHTSA is callable with no signup, and SBB Open Data is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call NHTSA and SBB Open Data from the browser?

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

Are NHTSA and SBB Open Data free for commercial use?

NHTSA allows commercial use on its free tier, and SBB Open Data 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.