BlockCypher vs Sharpe

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

Uptime · 30d
Uptime · 90d30.4%98.0%
Uptime · 30d36.7%96.7%
P50 · ms1451239
P95 · ms11293358
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitRetry-After: 1787sUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

BlockCypher vs Sharpe: common questions

Which is more reliable, BlockCypher or Sharpe?

On our scheduled checks, Sharpe leads on measured uptime — BlockCypher at 30.4% versus Sharpe at 98.0% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, BlockCypher or Sharpe?

BlockCypher has the lower median latency in our checks — BlockCypher responds in 145 ms versus Sharpe at 1239 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 BlockCypher and Sharpe need an API key?

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

Can I call BlockCypher and Sharpe from the browser?

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

Are BlockCypher and Sharpe free for commercial use?

BlockCypher 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.