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Blockchain vs CryptoLabel API

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

APIBlockchainHEALTHY95CryptoLabel APIHEALTHY80
Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d98.3%98.3%
P50 · ms4451384
P95 · ms11143698
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitRetry-After: 47655sUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Blockchain vs CryptoLabel API: common questions

Which is more reliable, Blockchain or CryptoLabel API?

Both are neck-and-neck — Blockchain and CryptoLabel API 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 CryptoLabel API?

Blockchain has the lower median latency in our checks — Blockchain responds in 445 ms versus CryptoLabel API at 1384 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 CryptoLabel API need an API key?

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

Can I call Blockchain and CryptoLabel API from the browser?

Only CryptoLabel API 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 CryptoLabel API free for commercial use?

Blockchain has unclear commercial terms, and CryptoLabel API 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.