ProblemsByVin vs StayingAPI

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms521143
P95 · ms2512913
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseCC BY 4.0
Free tierFree (weekly-refreshed static JSON datasets)
Rate limitUnpublished (static JSON files)
In directory since2026-07-052026-09-21
operationalpartialdownno data

ProblemsByVin vs StayingAPI: common questions

Which is more reliable, ProblemsByVin or StayingAPI?

Both are neck-and-neck — ProblemsByVin and StayingAPI each measure 100% 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, ProblemsByVin or StayingAPI?

StayingAPI has the lower median latency in our checks — ProblemsByVin responds in 521 ms versus StayingAPI at 143 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 ProblemsByVin and StayingAPI need an API key?

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

Can I call ProblemsByVin and StayingAPI from the browser?

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

Are ProblemsByVin and StayingAPI free for commercial use?

ProblemsByVin allows commercial use on its free tier, and StayingAPI 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.