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Chess.com vs Steam

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

APIChess.comNEW—SteamNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — no API keyFree, no API key
Rate limitSerial requests expected; no fixed cap publishedUnpublished (undocumented endpoint; IP rate-limited)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Chess.com vs Steam: common questions

Which is more reliable, Chess.com or Steam?

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

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

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

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

Are Chess.com and Steam free for commercial use?

Chess.com has unclear commercial terms, and Steam 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.