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ELI vs Kroki

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

APIELINEW—KrokiNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
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 Kroki: common questions

Which is more reliable, ELI or Kroki?

On our scheduled checks, Kroki leads on measured uptime — ELI at —% versus Kroki 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 ELI and Kroki need an API key?

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

Can I call ELI and Kroki from the browser?

Yes — both ELI and Kroki 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 Kroki free for commercial use?

ELI has unclear commercial terms, and Kroki 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.