RSQ API vs US Autocomplete
Same instrument, two spec sheets — measured, not claimed.
RSQ API vs US Autocomplete: common questions
Which is more reliable, RSQ API or US Autocomplete?
On our scheduled checks, RSQ API leads on measured uptime — RSQ API 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, RSQ API or US Autocomplete?
US Autocomplete has the lower median latency in our checks — RSQ API responds in 783 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 RSQ API and US Autocomplete need an API key?
RSQ API needs no key, while US Autocomplete requires a free API key. If you want to start calling without signup, reach for RSQ API first.
Can I call RSQ API and US Autocomplete from the browser?
Only US Autocomplete is browser-friendly — it returns CORS headers over HTTPS. RSQ API needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are RSQ API and US Autocomplete free for commercial use?
RSQ API 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.