BriefTape vs Markbase

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limit10000 req/window · 9381 remaining · resets 178355520030 req/window · 29 remaining · resets 1783519324
In directory since2026-07-052026-07-05
operationalpartialdownno data

BriefTape vs Markbase: common questions

Which is more reliable, BriefTape or Markbase?

On our scheduled checks, Markbase leads on measured uptime — BriefTape at —% versus Markbase 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 BriefTape and Markbase need an API key?

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

Can I call BriefTape and Markbase from the browser?

Yes — both BriefTape and Markbase 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 BriefTape and Markbase free for commercial use?

BriefTape has unclear commercial terms, and Markbase 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.