Blockchair vs Bscscan

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

Uptime · 30d
Uptime · 90d98.0%27.5%
Uptime · 30d98.3%40.0%
P50 · ms729179
P95 · ms1323522
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

Blockchair vs Bscscan: common questions

Which is more reliable, Blockchair or Bscscan?

On our scheduled checks, Blockchair leads on measured uptime — Blockchair at 98.0% versus Bscscan at 27.5% 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, Blockchair or Bscscan?

Bscscan has the lower median latency in our checks — Blockchair responds in 729 ms versus Bscscan at 179 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 Blockchair and Bscscan need an API key?

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

Can I call Blockchair and Bscscan from the browser?

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

Are Blockchair and Bscscan free for commercial use?

Blockchair has unclear commercial terms, and Bscscan 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.