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OpenSea vs Sharpe

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

APIOpenSeaNEW—SharpeNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OpenSea vs Sharpe: common questions

Which is more reliable, OpenSea or Sharpe?

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

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

Can I call OpenSea and Sharpe from the browser?

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

Are OpenSea and Sharpe free for commercial use?

OpenSea has unclear commercial terms, and Sharpe 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.