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Data Dragon API vs LAPIS

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

APIData Dragon APIHEALTHY99LAPISHEALTHY95
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms153524
P95 · ms1428846
Authnonenone
CORSyesyes
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

Data Dragon API vs LAPIS: common questions

Which is more reliable, Data Dragon API or LAPIS?

Both are neck-and-neck — Data Dragon API and LAPIS 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, Data Dragon API or LAPIS?

Data Dragon API has the lower median latency in our checks — Data Dragon API responds in 153 ms versus LAPIS at 524 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 Data Dragon API and LAPIS need an API key?

Neither needs a paid key — Data Dragon 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 Data Dragon API and LAPIS from the browser?

Yes — both Data Dragon API and LAPIS 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 Data Dragon API and LAPIS free for commercial use?

Data Dragon 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.