Free Trading Data APIs
Trading data providers with a genuinely usable free tier — real-time or delayed quotes, no credit card required. · 19 providers in range.
Filtered Universe
Databento
FREE Institutional-grade tick data with pay-as-you-go pricing
Usage-based: From $0Standard: $199/moPlus: Per-contract
▲ $125 in free credits for new users (6-month expiry); usable on historical data
Polygon.io (now Massive)
FREE Real-time and historical stock, options, forex, and crypto data — rebranded to Massive in 2026
Stocks Basic: $0/moStocks Starter: $29/moStocks Developer: $79/mo
▲ Free tier (Stocks Basic): 5 API calls/min, EOD data only, no real-time
Alpaca
FREE Commission-free broker API with built-in market data
Free: $0/moAlgo Trader Plus: $99/mo
▲ Free tier: real-time IEX feed, unlimited historical (15-min delay on SIP)
Finnhub
FREE Free real-time stock API with news, sentiment, and fundamentals
Free: $0/moAll-In-One: $50/mo
▲ Free: 60 API calls/min, real-time quotes, WebSocket trades
Alpha Vantage
FREE Free stock API with technical indicators and fundamentals
Free: $0/mo75 req/min: $49.99/mo150 req/min: $99.99/mo
▲ Free: 25 API requests/day, no real-time
Twelve Data
FREE Global stocks, forex, and crypto API with built-in technical indicators
Basic (Free): $0/moGrow: $79/moPro: $229/mo
▲ Free: 800 API credits/day, 8 WebSocket connections
EODHD (EOD Historical Data)
FREE Deep historical OHLCV and fundamentals for 70+ global exchanges
Free: $0/moEOD All World: $19.99/moAll World Extended (EOD+Intraday): $29.99/mo
▲ Free plan: 20 API calls/day, limited endpoints, personal use
Finazon
FREE Modular market data marketplace — pay only for the feeds you need
Pay-as-you-go: From $5/moPro Bundle: $79/mo
▲ Free sandbox with limited records per endpoint
OANDA
FREE Forex broker and data provider with institutional-grade FX history
Practice Account: $0Live Account: Spread-based
▲ Free practice/demo account with full API access
MetaAPI
FREE Cloud API for connecting to MT4/MT5 broker accounts programmatically
Free: $0/moGrowth: $15/moScale: $49/mo
▲ Free: 2 accounts, limited API calls, community support
Tradier
FREE Brokerage API with real-time market data, options chains, and commission-free trading
Lite: $0/moPro: $10/moPro Plus: $35/mo
▲ Free sandbox: full API access on paper trading account
Nasdaq Data Link
FREE Premium financial and alternative datasets for quant research (formerly Quandl)
Free: $0/moPremium: Custom
▲ Free: select open datasets; core financial data free with registration
Marketstack
FREE Simple REST API for global stock market data with a free tier for hobbyists
Free: $0/moBasic: $9.99/moProfessional: $49.99/mo
▲ 100 requests/mo, EOD only, 1-year history
AllTick
FREE Multi-market real-time data API covering US, HK, CN stocks plus forex and crypto with broad asset breadth
Free: $0/moBasic: $99/moPremium: $199/mo
▲ 10 demo symbols, 10 API calls/min, 1 year history
Intrinio
FREE Institutional-grade financial data platform with per-product pricing for fundamentals, options, and real-time SIP
Free Trial: $0EOD Stock Prices: $3,100/yearEquitiesEdge: $1,250/mo
▲ Free trials available on most products; no permanent free tier
Financial Modeling Prep
FREE Multi-asset financial data API with generous free tier and 30 years history on premium plans
Free: $0/moStarter: $22/moPremium: $59/mo
▲ 250 calls/day, EOD only, 5-year history, 150+ endpoints
Tiingo
FREE Affordable end-of-day and real-time data for US equities, crypto, forex with strong news API and 50+ year history
Free: $0/moPower: $10/moCommercial: Custom
▲ Free starter — 50 req/hour, 1,000 req/day, 500 unique symbols/month, EOD data
Interactive Brokers
FREE Multi-asset global broker with deepest API stack and lowest tiered commissions for active traders
IBKR Tiered: $0.0035/shareIBKR Fixed: $0.005/shareIBKR Lite: $0/trade
▲ Live data subscriptions sold separately; demo (paper) account is free
tastytrade
FREE Options-focused broker with capped per-leg commissions and futures/crypto access — no account minimum
Stocks & ETFs: $0/tradeEquity Options: $1/contract openFutures: $1.25/contract
▲ $0 stock/ETF commissions; paper trading via tastytrade platform