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CheapShark API vs Zenodo

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

APICheapShark APIHEALTHY89ZenodoHEALTHY59
Uptime · 30d
Uptime · 90d99.04%99.04%
Uptime · 30d98.3%100%
P50 · ms7761689
P95 · ms24834935
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublished30 req/window · 29 remaining · resets 1783516620
In directory since2026-07-052026-07-05
operationalpartialdownno data

CheapShark API vs Zenodo: common questions

Which is more reliable, CheapShark API or Zenodo?

Both are neck-and-neck — CheapShark API and Zenodo each measure 99.04% 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, CheapShark API or Zenodo?

CheapShark API has the lower median latency in our checks — CheapShark API responds in 776 ms versus Zenodo at 1689 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 CheapShark API and Zenodo need an API key?

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

Can I call CheapShark API and Zenodo from the browser?

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

Are CheapShark API and Zenodo free for commercial use?

CheapShark API has unclear commercial terms, and Zenodo 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.