Helium vs ValueRay
Same instrument, two spec sheets — measured, not claimed.
Helium vs ValueRay: common questions
Which is more reliable, Helium or ValueRay?
On our scheduled checks, ValueRay leads on measured uptime — Helium at —% versus ValueRay 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 Helium and ValueRay need an API key?
Neither needs a paid key — Helium is callable with no signup, and ValueRay is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Helium and ValueRay from the browser?
Only ValueRay is browser-friendly — it returns CORS headers over HTTPS. Helium needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are Helium and ValueRay free for commercial use?
Helium has unclear commercial terms, and ValueRay 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.