PredScope vs Tax Data
Same instrument, two spec sheets — measured, not claimed.
PredScope vs Tax Data: common questions
Which is more reliable, PredScope or Tax Data?
On our scheduled checks, Tax Data leads on measured uptime — PredScope at —% versus Tax Data 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 Tax Data need an API key?
PredScope needs no key, while Tax Data requires a free API key. If you want to start calling without signup, reach for PredScope first.
Can I call PredScope and Tax Data from the browser?
Yes — both PredScope and Tax Data 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 PredScope and Tax Data free for commercial use?
PredScope has unclear commercial terms, and Tax Data 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.