stocks

Run the stocks_client.py script with the quote command followed by ticker symbols, such as python3 stocks_client.py quote AAPL MSFT. It returns JSON with price, change, volume, and 52-week high and low using only the Python standard library.

Use the history command with a symbol and a range flag, for example python3 stocks_client.py history NVDA --range 6mo. It fetches daily OHLCV data from Yahoo Finance's unofficial endpoint and includes stats like min, max, average, and total return.

No external packages are required. The script uses only Python 3.8+ standard library modules like urllib, json, and argparse, so no pip installs or API keys are needed for basic quotes, history, search, compare, and crypto commands.

Yahoo's crumb-protected fields can return null when the session crumb is not established. Set the ALPHA_VANTAGE_KEY environment variable with a free Alpha Vantage key to backfill market cap, PE ratio, and 52-week levels.

No, it is strictly read-only market data retrieval. It supports quote, search, history, compare, and crypto commands but has no order placement, trading, or account integration capabilities.

The endpoints are unofficial and can change or rate-limit without notice, causing requests to fail. Adding small delays between bulk requests helps avoid rate-limiting, and there is no guaranteed uptime or data SLA.