Overview
KuCoin is a global cryptocurrency trading platform API offering access to hundreds of spot, margin, and futures trading pairs. Its public endpoints return real-time ticker data, candlestick charts, and order book snapshots without requiring authentication, while private endpoints support order placement and portfolio management. KuCoin is popular for its wide altcoin selection and developer-friendly documentation.
Beginner Tip
Public market data endpoints on KuCoin require no API key; start with the /api/v1/market/allTickers endpoint to retrieve price data for all trading pairs in a single call to understand the data structure.
Available Data
Example Response
{
"id": "bitcoin",
"symbol": "btc",
"current_price": 65432.1,
"market_cap": 1280000000000,
"price_change_24h": 1250.5,
"price_change_percentage_24h": 1.95,
"total_volume": 28500000000
} Field Reference
data.price Current market price of the trading pair. data.bestBid Best available bid price in the order book. data.bestAsk Best available ask price in the order book. data.size Quantity available at the best bid price. code Response code; "200000" indicates success, other codes indicate errors. data.time Timestamp in milliseconds when the order book snapshot was taken. Implementation Example
const url = "https://docs.kucoin.com/";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
headers: {
"X-API-Key": "YOUR_API_KEY"
}
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Matrix Score Breakdown
Partially tested on Apr 5, 2026
Technical Specifications
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