04-live-ccxt

04 — Live Data with CCXT

Fetch live OHLCV data from a crypto exchange and run a PyneCore indicator on it in real time. No API keys needed — uses public market data.

Run

uv run run.py

This will:

1. Fetch 100 historical BTC/USDT 1h candles from Binance
2. Run RSI on the historical data (warmup)
3. Poll for new candles every 10 seconds and process them live

Configuration

Edit the constants at the top of run.py:

EXCHANGE = "binance"          # any CCXT-supported exchange
SYMBOL = "BTC/USDT"           # trading pair
TIMEFRAME = "1h"              # candle timeframe
HISTORY_BARS = 100            # historical bars for indicator warmup
LIVE_UPDATES = 5              # number of live poll cycles
POLL_INTERVAL_SEC = 10        # seconds between polls

Supported Exchanges

CCXT supports 100+ exchanges. Just change the EXCHANGE variable:

EXCHANGE = "coinbase"         # Coinbase
EXCHANGE = "kraken"           # Kraken
EXCHANGE = "bybit"            # Bybit
EXCHANGE = "okx"              # OKX

Next Steps

• Replace polling with websocket streaming for real-time updates
• Add multiple indicators by creating more scripts
• Connect to a trading bot (see 05-freqtrade/ for a complete example)