Fed Treasury vs Helium
Same instrument, two spec sheets — measured, not claimed.
Fed Treasury vs Helium: common questions
Which is more reliable, Fed Treasury or Helium?
On our scheduled checks, Helium leads on measured uptime — Fed Treasury at —% versus Helium 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 Fed Treasury and Helium need an API key?
Neither needs a paid key — Fed Treasury is callable with no signup, and Helium is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Fed Treasury and Helium from the browser?
Neither sends browser-friendly CORS headers reliably, so call Fed Treasury and Helium from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Fed Treasury and Helium free for commercial use?
Fed Treasury allows commercial use on its free tier, and Helium 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.