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BriefTape vs PredScope

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

APIBriefTapeNEW—PredScopeNEW—
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 1783555200Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

BriefTape vs PredScope: common questions

Which is more reliable, BriefTape or PredScope?

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

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

Can I call BriefTape and PredScope from the browser?

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

BriefTape has unclear commercial terms, and PredScope 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.