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ListLoco API vs OpenQR

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

APIListLoco APIHEALTHY100OpenQRHEALTHY80
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms1271125
P95 · ms4432851
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ListLoco API vs OpenQR: common questions

Which is more reliable, ListLoco API or OpenQR?

Both are neck-and-neck — ListLoco API and OpenQR each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, ListLoco API or OpenQR?

ListLoco API has the lower median latency in our checks — ListLoco API responds in 127 ms versus OpenQR at 1125 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 ListLoco API and OpenQR need an API key?

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

Can I call ListLoco API and OpenQR from the browser?

Only OpenQR 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 OpenQR free for commercial use?

ListLoco API has unclear commercial terms, and OpenQR 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.