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Court Rules vs MarketAux

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

APICourt RulesDYING37MarketAuxDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified
Free tierFree tier — token required
Rate limit100 requests/day on free plan
In directory since2026-10-042026-07-05
operationalpartialdownno data

Court Rules vs MarketAux: common questions

Which is more reliable, Court Rules or MarketAux?

Both are neck-and-neck — Court Rules and MarketAux each measure 0.0% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Do Court Rules and MarketAux need an API key?

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

Can I call Court Rules and MarketAux from the browser?

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

Are Court Rules and MarketAux free for commercial use?

Court Rules 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.