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ModelPartFinder Error Codes vs ValidEU API

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

APIModelPartFinder Error CodesNEW—ValidEU APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — no keyFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ModelPartFinder Error Codes vs ValidEU API: common questions

Which is more reliable, ModelPartFinder Error Codes or ValidEU API?

On our scheduled checks, ValidEU API leads on measured uptime — ModelPartFinder Error Codes at —% versus ValidEU API 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 ModelPartFinder Error Codes and ValidEU API need an API key?

ModelPartFinder Error Codes needs no key, while ValidEU API requires a free API key. If you want to start calling without signup, reach for ModelPartFinder Error Codes first.

Can I call ModelPartFinder Error Codes and ValidEU API from the browser?

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

Are ModelPartFinder Error Codes and ValidEU API free for commercial use?

ModelPartFinder Error Codes has unclear commercial terms, and ValidEU API 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.