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ELI vs QR & Barcode

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

APIELIHEALTHY92QR & BarcodeHEALTHY91
Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d98.3%100%
P50 · ms591722
P95 · ms18171344
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ELI vs QR & Barcode: common questions

Which is more reliable, ELI or QR & Barcode?

On our scheduled checks, QR & Barcode leads on measured uptime — ELI at 99.02% versus QR & Barcode at 100% 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, ELI or QR & Barcode?

ELI has the lower median latency in our checks — ELI responds in 591 ms versus QR & Barcode at 722 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 ELI and QR & Barcode need an API key?

QR & Barcode needs no key, while ELI requires a free API key. If you want to start calling without signup, reach for QR & Barcode first.

Can I call ELI and QR & Barcode from the browser?

Yes — both ELI and QR & Barcode send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are ELI and QR & Barcode free for commercial use?

ELI has unclear commercial terms, and QR & Barcode 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.