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Blockchain vs Coinlayer

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

APIBlockchainHEALTHY95CoinlayerHEALTHY92
Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d98.3%98.3%
P50 · ms445467
P95 · ms11141716
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — key may be required
Rate limitRetry-After: 47655sUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Blockchain vs Coinlayer: common questions

Which is more reliable, Blockchain or Coinlayer?

Both are neck-and-neck — Blockchain and Coinlayer each measure 99.02% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Blockchain or Coinlayer?

Blockchain has the lower median latency in our checks — Blockchain responds in 445 ms versus Coinlayer at 467 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 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.