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