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ListLoco API vs ScreenshotOne.com

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

APIListLoco APINEW—ScreenshotOne.comNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
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

ListLoco API vs ScreenshotOne.com: common questions

Which is more reliable, ListLoco API or ScreenshotOne.com?

On our scheduled checks, ScreenshotOne.com leads on measured uptime — ListLoco API at —% versus ScreenshotOne.com 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 ListLoco API and ScreenshotOne.com need an API key?

ListLoco API needs no key, while ScreenshotOne.com requires a free API key. If you want to start calling without signup, reach for ListLoco API first.

Can I call ListLoco API and ScreenshotOne.com from the browser?

Only ScreenshotOne.com is browser-friendly — it returns CORS headers over HTTPS. ListLoco API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are ListLoco API and ScreenshotOne.com free for commercial use?

ListLoco API has unclear commercial terms, and ScreenshotOne.com 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.