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Bargo Congress Trades API vs Marketstack

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

APIBargo Congress Trades APINEW—MarketstackHEALTHY93
Uptime · 30d
Uptime · 90d—%100%
Uptime · 30d—%100%
P50 · ms—557
P95 · ms—926
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseUnverified
Free tierFree tier — key may be required
Rate limit30 req/window · 29 remainingUnpublished
In directory since2026-07-272026-07-05
operationalpartialdownno data

Bargo Congress Trades API vs Marketstack: common questions

Which is more reliable, Bargo Congress Trades API or Marketstack?

On our scheduled checks, Marketstack leads on measured uptime — Bargo Congress Trades API at —% versus Marketstack at 100% 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 Bargo Congress Trades API and Marketstack need an API key?

Bargo Congress Trades API needs no key, while Marketstack requires a free API key. If you want to start calling without signup, reach for Bargo Congress Trades API first.

Can I call Bargo Congress Trades API and Marketstack from the browser?

Only Bargo Congress Trades API is browser-friendly — it returns CORS headers over HTTPS. Marketstack needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Bargo Congress Trades API and Marketstack free for commercial use?

Bargo Congress Trades API allows commercial use on its free tier, and Marketstack 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.