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MarketAux vs Microlink.io

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

APIMarketAuxNEW—Microlink.ioNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedN/A — returns metadata extracted from the URL you pass
Free tierFree tier — token requiredFree tier — no key required (Pro plans need a key)
Rate limit100 requests/day on free planFree tier is rate-limited per day (see pricing)
In directory since2026-07-052026-07-05
operationalpartialdownno data

MarketAux vs Microlink.io: common questions

Which is more reliable, MarketAux or Microlink.io?

On our scheduled checks, Microlink.io leads on measured uptime — MarketAux at —% versus Microlink.io 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 Microlink.io need an API key?

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

Can I call MarketAux and Microlink.io from the browser?

Yes — both MarketAux and Microlink.io 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 Microlink.io free for commercial use?

MarketAux has unclear commercial terms, and Microlink.io 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.