OKX
FreeLiveLast verified 24 Sept 2026
Live crypto exchange data (tickers, order books, candles) and trading via signed REST/WebSocket API.
Example request
curl -s 'https://www.okx.com/api/v5/market/ticker?instId=BTC-USDT'
Free tier, in plain English
Market-data endpoints need no key and have no published quota; account/trading endpoints need an HMAC-signed API key and are rate-limited per endpoint.
Alternatives in Crypto
0xArchiveLive and historical Hyperliquid and Lighter order books, trades, funding and liquidation data.Freemium1inchDEX aggregator for token swap quotes, execution, order books, and on-chain prices across many chains.FreemiumAlpha (Mossland)RAG Q&A and canonical entity data over Korean crypto news and on-chain activity.FreeBinanceReal-time crypto prices, order books and trading for Binance's spot exchange, via REST and WebSocket.FreeBitcoin HalvingComputes Bitcoin's halving era, block subsidy and blocks-to-next-halving for any block height.Free