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Sofiaplan vs Wikipedia REST

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

APISofiaplanNEW—Wikipedia RESTHEALTHY—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedCC BY-SA 4.0
Free tierFree — limits not publishedUnlimited within etiquette
Rate limitUnpublished200/sec global courtesy cap
In directory since2026-07-052026-05-09
operationalpartialdownno data

Sofiaplan vs Wikipedia REST: common questions

Which is more reliable, Sofiaplan or Wikipedia REST?

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

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

Can I call Sofiaplan and Wikipedia REST from the browser?

Only Wikipedia REST 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 Sofiaplan and Wikipedia REST free for commercial use?

Sofiaplan has unclear commercial terms, and Wikipedia REST allows commercial use on its free tier. 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.