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npm Registry vs TotalShiftLeft Sandbox

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

APInpm RegistryNEW—TotalShiftLeft SandboxNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree (public registry)Free — open sandbox, auth optional
Rate limitUnpublished (bulk scraping discouraged)100 req/window · 99 remaining · resets 60
In directory since2026-07-052026-07-05
operationalpartialdownno data

npm Registry vs TotalShiftLeft Sandbox: common questions

Which is more reliable, npm Registry or TotalShiftLeft Sandbox?

On our scheduled checks, TotalShiftLeft Sandbox leads on measured uptime — npm Registry at —% versus TotalShiftLeft Sandbox 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 npm Registry and TotalShiftLeft Sandbox need an API key?

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

Can I call npm Registry and TotalShiftLeft Sandbox from the browser?

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

Are npm Registry and TotalShiftLeft Sandbox free for commercial use?

npm Registry has unclear commercial terms, and TotalShiftLeft Sandbox 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.