Exchanges¶

StratEvo supports 12 exchange adapters across crypto, US equities, and China A-shares. All adapters implement a common interface: get_ticker(), get_ohlcv(), and market-specific methods.

Exchange Overview¶

Exchange	Type	Module	Auth Required	WebSocket
Yahoo Finance	US/Global Stocks	`yahoo_finance`	No	No
Polygon	US Stocks	`polygon`	Yes (API key)	No
Alpha Vantage	US/Global Stocks	`alpha_vantage`	Yes (API key)	No
AkShare	China A-Shares	`akshare_adapter`	No	No
BaoStock	China A-Shares	`baostock_adapter`	No	No
Tushare	China A-Shares	`tushare_adapter`	Yes (token)	No
Binance	Crypto	`binance`	Yes (API key)	Yes
Bybit	Crypto	`bybit`	Yes (API key)	Yes
OKX	Crypto	`okx`	Yes (API key)	Yes
Coinbase	Crypto	`coinbase`	Yes (API key)	No
Kraken	Crypto	`kraken`	Yes (API key)	No
Alpaca	US Stocks	`alpaca`	Yes (API key)	No

US / Global Stock Exchanges¶

Yahoo Finance (Default)¶

No API key required. Best for getting started.

from stratevo.exchanges.registry import ExchangeRegistry

yahoo = ExchangeRegistry.get("yahoo")
quote = yahoo.get_ticker("AAPL")
candles = yahoo.get_ohlcv("AAPL", "1d", limit=50)

# CLI
python stratevo.py signal --ticker AAPL --strategy momentum

Polygon¶

High-quality US market data. Free tier available at polygon.io.

Setup:

export POLYGON_API_KEY="your_key_here"

polygon = ExchangeRegistry.get("polygon")
quote = polygon.get_ticker("MSFT")

Alpha Vantage¶

Free tier: 25 requests/day. Get a key at alphavantage.co.

export ALPHA_VANTAGE_API_KEY="your_key_here"

av = ExchangeRegistry.get("alpha_vantage")
quote = av.get_ticker("GOOGL")

Alpaca¶

Paper and live trading via alpaca.markets.

export ALPACA_API_KEY="your_key"
export ALPACA_SECRET_KEY="your_secret"
export ALPACA_BASE_URL="https://paper-api.alpaca.markets"  # paper trading

China A-Shares¶

AkShare¶

Open-source China market data. No API key needed.

akshare = ExchangeRegistry.get("akshare")
quote = akshare.get_ticker("000001.SZ")  # Ping An Bank
candles = akshare.get_ohlcv("600519.SH", "1d", limit=100)  # Moutai

python stratevo.py scan --market china --style buffett

BaoStock¶

Another free China data source with good historical coverage.

baostock = ExchangeRegistry.get("baostock")
candles = baostock.get_ohlcv("sh.600000", "1d", limit=200)

Tushare¶

Professional China market data. Get a token at tushare.pro.

export TUSHARE_TOKEN="your_token_here"

tushare = ExchangeRegistry.get("tushare")
quote = tushare.get_ticker("000001.SZ")

Crypto Exchanges¶

Binance¶

The largest crypto exchange by volume. Supports WebSocket streaming.

export BINANCE_API_KEY="your_key"
export BINANCE_API_SECRET="your_secret"

binance = ExchangeRegistry.get("binance")
quote = binance.get_ticker("BTCUSDT")
candles = binance.get_ohlcv("ETHUSDT", "1h", limit=100)

WebSocket streaming:

from stratevo.exchanges.binance_ws import BinanceWebSocket

ws = BinanceWebSocket()
ws.subscribe("BTCUSDT", callback=on_tick)
ws.start()

Bybit¶

Derivatives-focused exchange with WebSocket support.

export BYBIT_API_KEY="your_key"
export BYBIT_API_SECRET="your_secret"

bybit = ExchangeRegistry.get("bybit")
quote = bybit.get_ticker("BTCUSDT")

OKX¶

Full-featured crypto exchange with WebSocket.

export OKX_API_KEY="your_key"
export OKX_API_SECRET="your_secret"
export OKX_PASSPHRASE="your_passphrase"

okx = ExchangeRegistry.get("okx")
quote = okx.get_ticker("BTC-USDT")

Coinbase¶

US-regulated crypto exchange.

export COINBASE_API_KEY="your_key"
export COINBASE_API_SECRET="your_secret"

Kraken¶

European crypto exchange with strong security reputation.

export KRAKEN_API_KEY="your_key"
export KRAKEN_API_SECRET="your_secret"

Data Aggregator¶

Combine multiple sources for resilience and quality:

from stratevo.exchanges.data_aggregator import DataAggregator

agg = DataAggregator(sources=["yahoo", "polygon", "alpha_vantage"])
quote = agg.get_best_quote("AAPL")  # Uses the freshest available

Exchange Registry¶

List all available exchanges programmatically:

from stratevo.exchanges.registry import ExchangeRegistry

# List by type
ExchangeRegistry.list_by_type("crypto")    # ['binance', 'bybit', 'okx', ...]
ExchangeRegistry.list_by_type("stock_us")  # ['yahoo', 'polygon', ...]
ExchangeRegistry.list_by_type("stock_cn")  # ['akshare', 'baostock', ...]

Adding a New Exchange¶

See Plugins → Exchange Plugins for how to create custom exchange adapters.