shipapis
StarSubmit an APISubmit API

Blockchain.info vs Blockchair

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

APIBlockchain.infoNEW—BlockchairNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Blockchain.info vs Blockchair: common questions

Which is more reliable, Blockchain.info or Blockchair?

On our scheduled checks, Blockchair leads on measured uptime — Blockchain.info at —% versus Blockchair at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Blockchain.info and Blockchair need an API key?

Neither needs a paid key — Blockchain.info is callable with no signup, and Blockchair is callable with no signup. Both are quick to prototype with; rate limits still apply.

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

Yes — both Blockchain.info and Blockchair 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 Blockchair free for commercial use?

Blockchain.info has unclear commercial terms, and Blockchair 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.