Keen IO vs USPTO
Same instrument, two spec sheets — measured, not claimed.
Keen IO vs USPTO: common questions
Which is more reliable, Keen IO or USPTO?
On our scheduled checks, USPTO leads on measured uptime — Keen IO at —% versus USPTO 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 Keen IO and USPTO need an API key?
USPTO needs no key, while Keen IO requires a free API key. If you want to start calling without signup, reach for USPTO first.
Can I call Keen IO and USPTO from the browser?
Neither sends browser-friendly CORS headers reliably, so call Keen IO and USPTO from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Keen IO and USPTO free for commercial use?
Keen IO has unclear commercial terms, and USPTO 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.