shipapis
StarSubmit an APISubmit API

MarketAux vs Onyx Bazaar

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

APIMarketAuxNEW—Onyx BazaarNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — token requiredFree — limits not published
Rate limit100 requests/day on free planUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

MarketAux vs Onyx Bazaar: common questions

Which is more reliable, MarketAux or Onyx Bazaar?

On our scheduled checks, Onyx Bazaar leads on measured uptime — MarketAux at —% versus Onyx Bazaar 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 MarketAux and Onyx Bazaar need an API key?

Onyx Bazaar needs no key, while MarketAux requires a free API key. If you want to start calling without signup, reach for Onyx Bazaar first.

Can I call MarketAux and Onyx Bazaar from the browser?

Yes — both MarketAux and Onyx Bazaar send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are MarketAux and Onyx Bazaar free for commercial use?

MarketAux has unclear commercial terms, and Onyx Bazaar 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.