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Ambee vs MarketAux

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

APIAmbeeNEW—MarketAuxNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — token required
Rate limitUnpublished100 requests/day on free plan
In directory since2026-07-052026-07-05
operationalpartialdownno data

Ambee vs MarketAux: common questions

Which is more reliable, Ambee or MarketAux?

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

Both ask you to authenticate — Ambee uses an API key and MarketAux uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Ambee and MarketAux from the browser?

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

Are Ambee and MarketAux free for commercial use?

Ambee has unclear commercial terms, and MarketAux 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.