Bitmex vs OKEx

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

Uptime · 30d
Uptime · 90d2.9%85.3%
Uptime · 30d0.0%96.7%
P50 · ms840192
P95 · ms840490
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — API key required
Rate limit300 req/window · 299 remaining · resets 1783520161Retry-After: 0s
In directory since2026-07-052026-07-05
operationalpartialdownno data

Bitmex vs OKEx: common questions

Which is more reliable, Bitmex or OKEx?

On our scheduled checks, OKEx leads on measured uptime — Bitmex at 2.9% 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, Bitmex or OKEx?

OKEx has the lower median latency in our checks — Bitmex responds in 840 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 Bitmex and OKEx need an API key?

Both ask you to authenticate — Bitmex uses an API key and OKEx 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 Bitmex and OKEx from the browser?

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

Are Bitmex and OKEx free for commercial use?

Bitmex 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.