Fixer API vs OpenSanctions
Same instrument, two spec sheets — measured, not claimed.
Fixer API vs OpenSanctions: common questions
Which is more reliable, Fixer API or OpenSanctions?
On our scheduled checks, OpenSanctions leads on measured uptime — Fixer API at —% versus OpenSanctions 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 API and OpenSanctions need an API key?
OpenSanctions needs no key, while Fixer API requires a free API key. If you want to start calling without signup, reach for OpenSanctions first.
Can I call Fixer API and OpenSanctions from the browser?
Only OpenSanctions is browser-friendly — it returns CORS headers over HTTPS. Fixer API needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are Fixer API and OpenSanctions free for commercial use?
Fixer API has unclear commercial terms, and OpenSanctions 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.