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CheapShark API vs Gladia

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

APICheapShark APINEW—GladiaNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CheapShark API vs Gladia: common questions

Which is more reliable, CheapShark API or Gladia?

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

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

Can I call CheapShark API and Gladia from the browser?

Only Gladia 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 Gladia free for commercial use?

CheapShark API has unclear commercial terms, and Gladia 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.