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.
GreatAPIs Score
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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.
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.
Developer reference
Keyed REST, resource-pool/weight system by VIP level: Unified Account VIP0 200 req/s up to VIP12 3000 req/s; Spot Trading pool VIP0 4000 per 30s up to VIP12 40000 per 30s; Futures pool VIP0 2000 per 30s up to VIP12 20000 per 30s. WebSocket: <=800 connections, 100 messages per 10s per connection, <=400 topics per connection