Trading Data Providers
13 providers compared. Data updated 2026-05-23.
Databento
Institutional-grade tick data with pay-as-you-go pricing
US EquitiesUS FuturesUS Options
From From $0 ✓ Free tier
Polygon.io (now Massive)
Real-time and historical stock, options, forex, and crypto data — rebranded to Massive in 2026
US EquitiesUS OptionsForex
From $0/mo ✓ Free tier
Alpaca
Commission-free broker API with built-in market data
US EquitiesUS OptionsCrypto
From $0/mo ✓ Free tier
IEX Cloud (Discontinued)
⚠️ Service shut down August 31, 2024 — no longer available
US EquitiesUS OptionsCrypto
From N/A
Finnhub
Free real-time stock API with news, sentiment, and fundamentals
US EquitiesGlobal EquitiesForex
From $0/mo ✓ Free tier
Alpha Vantage
Free stock API with technical indicators and fundamentals
US EquitiesGlobal EquitiesForex
From $0/mo ✓ Free tier
Twelve Data
Global stocks, forex, and crypto API with built-in technical indicators
US EquitiesGlobal EquitiesForex
From $0/mo ✓ Free tier
EOD Historical Data
Deep historical OHLCV and fundamentals for 70+ global exchanges
Global EquitiesUS EquitiesForex
From $19.99/mo ✓ Free tier
Finazon
Modular market data marketplace — pay only for the feeds you need
US EquitiesForexCrypto
From From $9/mo ✓ Free tier
OANDA
Forex broker and data provider with institutional-grade FX history
ForexCFDsCommodities
From $0 ✓ Free tier
MetaAPI
Cloud API for connecting to MT4/MT5 broker accounts programmatically
ForexCFDsIndices
From $0/mo ✓ Free tier
Tradier
Brokerage API with real-time market data, options chains, and commission-free trading
US EquitiesUS OptionsETFs
From $0/mo ✓ Free tier
Nasdaq Data Link
Premium financial and alternative datasets for quant research (formerly Quandl)
US EquitiesGlobal EquitiesFutures
From $0/mo ✓ Free tier