Cryptocurrency — entry 042 of 53
KuCoin
KuCoin's REST API spans spot, margin, and futures trading, account/funding management, and market data, with public endpoints open to anyone and private trading/account endpoints requiring an API key, secret, and passphrase combination. A parallel WebSocket API streams real-time tickers, order books, and trade execution updates, and the whole surface is free to use aside from KuCoin's own trading fees.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSDisabledBrowser calls need a server-side proxy.
PricingFreeNo paid tier — free for the documented use case.
FormatsJSON, WebSocketResponses can be requested as JSON or WebSocket.
GreatAPIs Score
Score70
Authentication15/25API key required
Pricing20/20Free to use
Docs0/20No docs or spec available
Formats15/15Supports 2 response formats
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/kucoin/"><img src="https://greatapis.com/badge/kucoin.svg" alt="Scored 70 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.