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Open VSX Registry API vs RuntimeBuzz Article API

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

APIOpen VSX Registry APIHEALTHY95RuntimeBuzz Article APIHEALTHY93
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms245539
P95 · ms6931222
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limit10800 req/window · 10799 remainingUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Open VSX Registry API vs RuntimeBuzz Article API: common questions

Which is more reliable, Open VSX Registry API or RuntimeBuzz Article API?

Both are neck-and-neck — Open VSX Registry API and RuntimeBuzz Article API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Open VSX Registry API or RuntimeBuzz Article API?

Open VSX Registry API has the lower median latency in our checks — Open VSX Registry API responds in 245 ms versus RuntimeBuzz Article API at 539 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Open VSX Registry API and RuntimeBuzz Article API need an API key?

Neither needs a paid key — Open VSX Registry API is callable with no signup, and RuntimeBuzz Article API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Open VSX Registry API and RuntimeBuzz Article API from the browser?

Only Open VSX Registry API is browser-friendly — it returns CORS headers over HTTPS. RuntimeBuzz Article API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Open VSX Registry API and RuntimeBuzz Article API free for commercial use?

Open VSX Registry API has unclear commercial terms, and RuntimeBuzz Article API 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.