Apiverket vs ONS
Same instrument, two spec sheets — measured, not claimed.
Apiverket vs ONS: common questions
Which is more reliable, Apiverket or ONS?
Both are neck-and-neck — Apiverket and ONS 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, Apiverket or ONS?
Apiverket has the lower median latency in our checks — Apiverket responds in 444 ms versus ONS at 732 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 Apiverket and ONS need an API key?
ONS needs no key, while Apiverket requires a free API key. If you want to start calling without signup, reach for ONS first.
Can I call Apiverket and ONS from the browser?
Yes — both Apiverket and ONS 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 Apiverket and ONS free for commercial use?
Apiverket has unclear commercial terms, and ONS 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.