Keyvalue vs US Street Address
Same instrument, two spec sheets — measured, not claimed.
Keyvalue vs US Street Address: common questions
Which is more reliable, Keyvalue or US Street Address?
On our scheduled checks, US Street Address leads on measured uptime — Keyvalue at —% versus US Street Address 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 Keyvalue and US Street Address need an API key?
Keyvalue needs no key, while US Street Address requires a free API key. If you want to start calling without signup, reach for Keyvalue first.
Can I call Keyvalue and US Street Address from the browser?
Yes — both Keyvalue and US Street Address send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are Keyvalue and US Street Address free for commercial use?
Keyvalue has unclear commercial terms, and US Street Address 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.