FXMacroData vs Helium
Same instrument, two spec sheets — measured, not claimed.
FXMacroData vs Helium: common questions
Which is more reliable, FXMacroData or Helium?
Both are neck-and-neck — FXMacroData and Helium each measure 0.0% 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.
Do FXMacroData and Helium need an API key?
Helium needs no key, while FXMacroData requires a free API key. If you want to start calling without signup, reach for Helium first.
Can I call FXMacroData and Helium from the browser?
Neither sends browser-friendly CORS headers reliably, so call FXMacroData 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 FXMacroData and Helium free for commercial use?
FXMacroData has unclear commercial terms, 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.