Prompt
financial data API with historical data
Latest observation
If you're looking for a financial data API that includes historical data, here are some good options depending on what you need:
Popular APIs
-
Alpha Vantage
- Stocks, forex, crypto, indicators
- Good free tier
- Historical intraday and daily data
- Website: https://www.alphavantage.co/
-
Polygon.io
- Real-time + historical market data
- Stocks, options, forex, crypto
- Strong developer experience
- Paid plans, limited free access
- Website: https://polygon.io/
-
IEX Cloud
- Stocks and market data
- Historical prices, fundamentals
- Flexible pricing
- Website: https://iexcloud.io/
-
Finnhub
- Stocks, forex, crypto, fundamentals, news
- Historical candle data
- Free and paid tiers
- Website: https://finnhub.io/
-
Tiingo
- End-of-day historical data
- Good for research and backtesting
- Website: https://tiingo.com/
-
Nasdaq Data Link (formerly Quandl)
- Huge variety of datasets
- Great for macroeconomic and alternative data
- Website: https://data.nasdaq.com/
If you want free historical stock data
- Alpha Vantage
- Finnhub
- Tiingo (limited free)
- Stooq (free, but less official)
If you want reliable institutional-grade data
- Polygon.io
- Tiingo
- Nasdaq Data Link
- Bloomberg / Refinitiv (enterprise)
What to consider
- Asset type: stocks, crypto, forex, options, ETFs
- Frequency: daily, intraday, tick data
- History depth: years vs. days
- Rate limits and pricing
- Adjusted prices for splits/dividends
- Ease of use and documentation
If you want, I can also recommend:
- the best free API
- the best API for backtesting
- or give you a Python example to fetch historical data.
Observation history
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