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Currents vs MarketAux

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

APICurrentsHEALTHY93MarketAuxDEAD0
Uptime · 30d
Uptime · 90d100%0.0%
Uptime · 30d100%0.0%
P50 · ms586—
P95 · ms1165—
AuthapiKeyapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — token required
Rate limitUnpublished100 requests/day on free plan
In directory since2026-07-052026-07-05
operationalpartialdownno data

Currents vs MarketAux: common questions

Which is more reliable, Currents or MarketAux?

On our scheduled checks, Currents leads on measured uptime — Currents at 100% versus MarketAux at 0.0% 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 Currents and MarketAux need an API key?

Both ask you to authenticate — Currents 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 Currents and MarketAux from the browser?

Neither sends browser-friendly CORS headers reliably, so call Currents and MarketAux from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Currents and MarketAux free for commercial use?

Currents 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.