FINC Finance (Kownatzki): Stock Market APIs

Alpha Vantage Stock API
Programmatic access to US and international financial and economic datasets, including: 

• Historical price and volume data for 20,000+ stocks and ETFs traded on US, Canada, UK, and other major global exchanges
• Realtime and historical foreign exchange rate (forex) and cryptocurrency data
• Company financials (e.g., income statement, balance sheet, cash flow) derived from SEC filings
• Over 50 technical indicators (e.g., moving average, Bollinger Bands, etc) for stock time series data

Access: Graziadio members can request a free API key here. A free API key enables up to 500 data queries on a daily basis. Please reach out to support@alphavantage.co if a higher query volume is needed. 

Additional resources:

• Official API Documentation
• Finance API Review that includes data integration code samples and best practices of working with financial market data
• If you would like to access Alpha Vantage's data through spreadsheets (e.g., Excel and Google Sheets), please refer to their spreadsheet add-on page