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CEORater API vs LAPIS

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

APICEORater APIDEAD0LAPISHEALTHY95
Uptime · 30d
Uptime · 90d0.0%100%
Uptime · 30d0.0%100%
P50 · ms—524
P95 · ms—846
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedOpen sequence data (GenBank/Nextstrain-derived); Unverified
Free tierFree — limits not publishedFree — no key (open instance)
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CEORater API vs LAPIS: common questions

Which is more reliable, CEORater API or LAPIS?

On our scheduled checks, LAPIS leads on measured uptime — CEORater API at 0.0% versus LAPIS 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.

Do CEORater API and LAPIS need an API key?

Neither needs a paid key — CEORater API is callable with no signup, and LAPIS is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call CEORater API and LAPIS from the browser?

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

Are CEORater API and LAPIS free for commercial use?

CEORater API has unclear commercial terms, and LAPIS 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.