US Street Address vs User Agent Lookup API
Same instrument, two spec sheets — measured, not claimed.
US Street Address vs User Agent Lookup API: common questions
Which is more reliable, US Street Address or User Agent Lookup API?
On our scheduled checks, User Agent Lookup API leads on measured uptime — US Street Address at —% versus User Agent Lookup 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 US Street Address and User Agent Lookup API need an API key?
User Agent Lookup API needs no key, while US Street Address requires a free API key. If you want to start calling without signup, reach for User Agent Lookup API first.
Can I call US Street Address and User Agent Lookup API from the browser?
Only US Street Address 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 US Street Address and User Agent Lookup API free for commercial use?
US Street Address 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.