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PredScope vs TaxID

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

APIPredScopeNEW—TaxIDNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

PredScope vs TaxID: common questions

Which is more reliable, PredScope or TaxID?

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

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

Can I call PredScope and TaxID from the browser?

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

Are PredScope and TaxID free for commercial use?

PredScope has unclear commercial terms, and TaxID 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.