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Lookup.im API vs ValidEU API

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

APILookup.im APIHEALTHY84ValidEU APIHEALTHY97
Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d100%100%
P50 · ms1158273
P95 · ms3581786
AuthapiKeyapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Lookup.im API vs ValidEU API: common questions

Which is more reliable, Lookup.im API or ValidEU API?

On our scheduled checks, ValidEU API leads on measured uptime — Lookup.im API at 99.02% versus ValidEU API at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Lookup.im API or ValidEU API?

ValidEU API has the lower median latency in our checks — Lookup.im API responds in 1158 ms versus ValidEU API at 273 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 Lookup.im API and ValidEU API need an API key?

Both ask you to authenticate — Lookup.im API uses an API key and ValidEU API uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Lookup.im API and ValidEU API from the browser?

Neither sends browser-friendly CORS headers reliably, so call Lookup.im API and ValidEU API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Lookup.im API and ValidEU API free for commercial use?

Lookup.im API 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.