
CppDB - SQL Connectivity Library
SQLAPI++
Abstract Database Connector
FinancialData.net
Alpha Vantage
Twelve Data
Polygon.io
Financial Modeling Prep
FinFeedAPI
Finqual.app
Quandl
FinancialData.Net API provides end-of-day and intraday stock market data, company financial statements, key financial ratios and metrics, insider and institutional trading data, sustainability data, earnings releases, and more. Over 20 years of historical data is available, covering 17,000+ stocks, 20,000+ funds, 3,000+ ETFs, 13,000+ OTC securities, and 200,000+ derivatives. Data can be accessed through the API or the data viewer, with datasets exportable to Excel, CSV, or JSON. An official MCP server for AI agents is also available.
CppDB - SQL Connectivity Library
FinancialData.netNo features have been listed yet.
SQLAPI++ - SQLAPI++ is C++ library for accessing SQL databases (Oracle, SQL Server, Sybase, DB2, InterBase, SQLBase, Informix, MySQL, Postgre, ODBC, SQLite, SQL Anywhere).
Alpha Vantage - Alpha Vantage offers free APIs in JSON and CSV formats for realtime and historical stock and forex data, digital/crypto currency data and over 50 technical indicators.
Abstract Database Connector - Abstract Database Connector is a C/C++ library for making connections to several databases (MySQL...
Twelve Data - The simplest and most effective way to access both realtime and historical stock, forex, cryptocurrency data, and over 100 technical indicators.