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CheapShark vs Chess.com

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

APICheapSharkNEW—Chess.comNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — no keyFree — no API key
Rate limitUnpublishedSerial requests expected; no fixed cap published
In directory since2026-07-052026-07-05
operationalpartialdownno data

CheapShark vs Chess.com: common questions

Which is more reliable, CheapShark or Chess.com?

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

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

Can I call CheapShark and Chess.com from the browser?

Yes — both CheapShark and Chess.com 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 CheapShark and Chess.com free for commercial use?

CheapShark has unclear commercial terms, and Chess.com 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.