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Blockchain vs Coinlayer

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

APIBlockchainNEW—CoinlayerNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Blockchain vs Coinlayer: common questions

Which is more reliable, Blockchain or Coinlayer?

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

Both ask you to authenticate — Blockchain uses an API key and Coinlayer uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Blockchain and Coinlayer from the browser?

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

Are Blockchain and Coinlayer free for commercial use?

Blockchain has unclear commercial terms, and Coinlayer 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.