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Blockchain vs Nexchange

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

APIBlockchainHEALTHY97NexchangeHEALTHY96
Uptime · 30d
Uptime · 90d99.44%97.8%
Uptime · 30d100%98.3%
P50 · ms203190
P95 · ms8803199
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 Nexchange: common questions

Which is more reliable, Blockchain or Nexchange?

On our scheduled checks, Blockchain leads on measured uptime — Blockchain at 99.44% versus Nexchange at 97.8% 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, Blockchain or Nexchange?

Nexchange has the lower median latency in our checks — Blockchain responds in 203 ms versus Nexchange at 190 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 Nexchange need an API key?

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

Can I call Blockchain and Nexchange from the browser?

Only Nexchange 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 Nexchange free for commercial use?

Blockchain has unclear commercial terms, and Nexchange 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.