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Blockchain.info vs CoinDCX

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

APIBlockchain.infoHEALTHY95CoinDCXHEALTHY95
Uptime · 30d
Uptime · 90d100%94.1%
Uptime · 30d100%100%
P50 · ms397190
P95 · ms870877
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Blockchain.info vs CoinDCX: common questions

Which is more reliable, Blockchain.info or CoinDCX?

On our scheduled checks, Blockchain.info leads on measured uptime — Blockchain.info at 100% versus CoinDCX at 94.1% 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 CoinDCX?

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

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

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

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

Are Blockchain.info and CoinDCX free for commercial use?

Blockchain.info has unclear commercial terms, and CoinDCX 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.