Blockchair vs TWZRD Agent Intel

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

Uptime · 30d
Uptime · 90d98.0%100%
Uptime · 30d98.3%100%
P50 · ms729525
P95 · ms1323879
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

Blockchair vs TWZRD Agent Intel: common questions

Which is more reliable, Blockchair or TWZRD Agent Intel?

On our scheduled checks, TWZRD Agent Intel leads on measured uptime — Blockchair at 98.0% versus TWZRD Agent Intel at 100% 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 TWZRD Agent Intel?

TWZRD Agent Intel has the lower median latency in our checks — Blockchair responds in 729 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 Blockchair and TWZRD Agent Intel need an API key?

Neither needs a paid key — Blockchair 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 Blockchair and TWZRD Agent Intel from the browser?

Only Blockchair 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 Blockchair and TWZRD Agent Intel free for commercial use?

Blockchair 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.