Serialif Color vs US Autocomplete

Same instrument, two spec sheets — measured, not claimed.

Uptime · 30d
Uptime · 90d35.3%99.02%
Uptime · 30d36.7%98.3%
P50 · ms1680683
P95 · ms38861917
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Serialif Color vs US Autocomplete: common questions

Which is more reliable, Serialif Color or US Autocomplete?

On our scheduled checks, US Autocomplete leads on measured uptime — Serialif Color at 35.3% 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, Serialif Color or US Autocomplete?

US Autocomplete has the lower median latency in our checks — Serialif Color responds in 1680 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 Serialif Color and US Autocomplete need an API key?

Serialif Color needs no key, while US Autocomplete requires a free API key. If you want to start calling without signup, reach for Serialif Color first.

Can I call Serialif Color and US Autocomplete from the browser?

Only US Autocomplete is browser-friendly — it returns CORS headers over HTTPS. Serialif Color needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Serialif Color and US Autocomplete free for commercial use?

Serialif Color 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.