Blockchain.info vs TWZRD Agent Intel

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms397525
P95 · ms870879
Authnonenone
CORSyesno
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 TWZRD Agent Intel: common questions

Which is more reliable, Blockchain.info or TWZRD Agent Intel?

Both are neck-and-neck — Blockchain.info and TWZRD Agent Intel each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Blockchain.info or TWZRD Agent Intel?

Blockchain.info has the lower median latency in our checks — Blockchain.info responds in 397 ms versus TWZRD Agent Intel at 525 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 TWZRD Agent Intel need an API key?

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

Can I call Blockchain.info and TWZRD Agent Intel from the browser?

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

Are Blockchain.info and TWZRD Agent Intel free for commercial use?

Blockchain.info has unclear commercial terms, and TWZRD Agent Intel 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.