npm Registry vs US Autocomplete
Same instrument, two spec sheets — measured, not claimed.
npm Registry vs US Autocomplete: common questions
Which is more reliable, npm Registry or US Autocomplete?
On our scheduled checks, npm Registry leads on measured uptime — npm Registry at 100% versus US Autocomplete at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, npm Registry or US Autocomplete?
npm Registry has the lower median latency in our checks — npm Registry responds in 243 ms versus US Autocomplete at 683 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 npm Registry and US Autocomplete need an API key?
npm Registry needs no key, while US Autocomplete requires a free API key. If you want to start calling without signup, reach for npm Registry first.
Can I call npm Registry and US Autocomplete from the browser?
Yes — both npm Registry and US Autocomplete 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 npm Registry and US Autocomplete free for commercial use?
npm Registry has unclear commercial terms, and US Autocomplete 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.