Alpha Vantage
Free and premium REST API for real-time and historical stock prices, forex rates, cryptocurrency data, and technical indicators, widely used for financial analysis and trading applications.
Best When
You need a free, accessible starting point for stock/forex/crypto data in a financial agent or prototype, or you need affordable access to historical fundamentals and technical indicators.
Avoid When
You need real-time professional-grade data with low latency, or your agent makes more than a few hundred API calls per day on the free tier.
Use Cases
- • Fetching real-time and historical stock prices for financial analysis agents
- • Retrieving forex exchange rates for currency conversion in automated workflows
- • Getting cryptocurrency prices and OHLCV data for crypto trading bots
- • Computing technical indicators (RSI, MACD, SMA) via built-in indicator endpoints
- • Earnings, balance sheet, and income statement data for fundamental analysis agents
Not For
- • Ultra-low latency trading (sub-millisecond) — not designed for HFT
- • Real-time Level 2 order book data — only top-of-book available
- • Options data beyond basic coverage
- • High-frequency polling on free tier (5 requests/minute is very limiting)
Alternatives
Full Evaluation Report
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Score Monitoring
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Scores are editorial opinions as of 2026-03-01.