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Blockchain.info vs OKEx

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

APIBlockchain.infoHEALTHY95OKExHEALTHY91
Uptime · 30d
Uptime · 90d100%85.3%
Uptime · 30d100%96.7%
P50 · ms397192
P95 · ms870490
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedRetry-After: 0s
In directory since2026-07-052026-07-05
operationalpartialdownno data

Blockchain.info vs OKEx: common questions

Which is more reliable, Blockchain.info or OKEx?

On our scheduled checks, Blockchain.info leads on measured uptime — Blockchain.info at 100% versus OKEx at 85.3% 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.info or OKEx?

OKEx has the lower median latency in our checks — Blockchain.info responds in 397 ms versus OKEx at 192 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.info and OKEx need an API key?

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

Can I call Blockchain.info and OKEx from the browser?

Yes — both Blockchain.info and OKEx send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Blockchain.info and OKEx free for commercial use?

Blockchain.info has unclear commercial terms, and OKEx 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.