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Monday vs User Agent Lookup API

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

APIMondayHEALTHY99User Agent Lookup APIHEALTHY97
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms128128
P95 · ms10861118
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Monday vs User Agent Lookup API: common questions

Which is more reliable, Monday or User Agent Lookup API?

Both are neck-and-neck — Monday and User Agent Lookup API 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, Monday or User Agent Lookup API?

They're evenly matched on speed — both Monday and User Agent Lookup API post a 128 ms median (P50) in our checks. Look at the P95 row above if worst-case latency matters more than the typical response for your use case.

Do Monday and User Agent Lookup API need an API key?

User Agent Lookup API needs no key, while Monday requires a free API key. If you want to start calling without signup, reach for User Agent Lookup API first.

Can I call Monday and User Agent Lookup API from the browser?

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

Are Monday and User Agent Lookup API free for commercial use?

Monday has unclear commercial terms, and User Agent Lookup 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.