How to Scrape Stock Market Data with Free APIs (Yahoo Finance, Alpha Vantage)

Financial data scraping powers trading bots, dashboards, and research tools. Yahoo Finance (Unofficial, Free) async function getStockQuote ( symbol ) { const url = `https://query1.finance.yahoo.com/v8/finance/chart/ ${ symbol } ?interval=1d&range=1mo` ; const res = await fetch ( url , { headers : { " User-Agent " : " StockBot/1.0 " } }); const data = await res . json (); const result = data . chart . result [ 0 ]; return { symbol , currency : result . meta . currency , price : result . meta . regularMarketPrice , previousClose : result . meta . previousClose , timestamps : result . timestamp , prices : result . indicators . quote [ 0 ]. close }; } Alpha Vantage (Free, Key Required) https://www.alphavantage.co/query?function=TIME_SERIES_DAILY&symbol=AAPL&apikey=YOUR_KEY Free: 25 requests/day. Other Free Sources Source Data Key Yahoo Finance Quotes, charts None Alpha Vantage Historical, forex Free Finnhub Real-time Free IEX Cloud US stocks Free tier CoinGecko Crypto None Use Cases Tradin