Best Finance Data API Products in 2025

Polygon.io offers streaming realtime data for stocks/equities, ETFs, Indecies and Forex/Currencies including crypto currencies. Our Real-Time Stock Data APIs help you build the future on fintech.

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.

The simplest and most effective way to access both realtime and historical stock, forex, cryptocurrency data, and over 100 technical indicators.

Open Source

Stock Market and Financial Data API

freemium

Access all stocks discounted cash flow statements, market price, stock markets news, and learn more about Financial Modeling. Learn M&A, LBO, DCF, Comps, and Financial Statement Modeling thought concrete examples

The stock market API powered by SQL.

freemium $14.99 / Monthly

Quandl is a platform for financial, economic, and alternative data, serving investment professionals.

The reliable, enterprise API that powers IEX. Free for everyone.

A financial research platform dedicated to creating innovative financial tools for all, while adopting the motto, "Actively Do Good."

Finage is a next-generation market data feeds provider. We are providing 60.000+ financial data feeds in real-time and historical via APIs and WebSockets such as; Global Stock, Forex, Cryptocurrency, ETFs, Indices, and financial statements, and more.

freemium $49.0 / Monthly

A new consumer-focused and mobile-friendly opinion site

Intrinio is a trading platform, providing professionals with the best in class financial market data API and other tools.

Open links from Slack via desktop apps: Notion, Spotify, Zoom, Miro, Telegram, Airtable, Figma and VK.