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ListLoco API vs Sheetsu

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

APIListLoco APINEW—SheetsuNEW—
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 — key may be required
Rate limitUnpublished90 req/window · 89 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

ListLoco API vs Sheetsu: common questions

Which is more reliable, ListLoco API or Sheetsu?

On our scheduled checks, Sheetsu leads on measured uptime — ListLoco API at —% versus Sheetsu 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 Sheetsu need an API key?

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

Can I call ListLoco API and Sheetsu from the browser?

Only Sheetsu 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 Sheetsu free for commercial use?

ListLoco API has unclear commercial terms, and Sheetsu 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.