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OpenSanctions vs Sofiaplan

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

APIOpenSanctionsNEW—SofiaplanNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OpenSanctions vs Sofiaplan: common questions

Which is more reliable, OpenSanctions or Sofiaplan?

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

Neither needs a paid key — OpenSanctions is callable with no signup, and Sofiaplan is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call OpenSanctions and Sofiaplan from the browser?

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

Are OpenSanctions and Sofiaplan free for commercial use?

OpenSanctions has unclear commercial terms, and Sofiaplan 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.