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MarketAux vs RSS2JSON

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

APIMarketAuxDEAD0RSS2JSONHEALTHY96
Uptime · 30d
Uptime · 90d0.0%96.1%
Uptime · 30d0.0%96.7%
P50 · ms—178
P95 · ms—1882
AuthapiKeynone
CORSnoyes
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 RSS2JSON: common questions

Which is more reliable, MarketAux or RSS2JSON?

On our scheduled checks, RSS2JSON leads on measured uptime — MarketAux at 0.0% versus RSS2JSON at 96.1% 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 RSS2JSON need an API key?

RSS2JSON needs no key, while MarketAux requires a free API key. If you want to start calling without signup, reach for RSS2JSON first.

Can I call MarketAux and RSS2JSON from the browser?

Only RSS2JSON is browser-friendly — it returns CORS headers over HTTPS. MarketAux needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are MarketAux and RSS2JSON free for commercial use?

MarketAux has unclear commercial terms, and RSS2JSON 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.