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Helium vs SEC EDGAR Data

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

APIHeliumNEW—SEC EDGAR DataNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic domain (U.S. government work)
Free tierFirst 50 queries per IP free, no key (paid API key beyond, ~$0.02/query)Free — public government data
Rate limit50 free queries per IP subnetMax 10 requests/second; descriptive User-Agent required (SEC fair-access policy)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Helium vs SEC EDGAR Data: common questions

Which is more reliable, Helium or SEC EDGAR Data?

On our scheduled checks, SEC EDGAR Data leads on measured uptime — Helium at —% versus SEC EDGAR Data 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 SEC EDGAR Data need an API key?

Neither needs a paid key — Helium is callable with no signup, and SEC EDGAR Data is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Helium and SEC EDGAR Data from the browser?

Only SEC EDGAR Data 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 SEC EDGAR Data free for commercial use?

Helium has unclear commercial terms, and SEC EDGAR Data allows commercial use on its free tier. 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.