Quick answer
For retail futures automation, Tradovate is the most web-native API (REST + WebSocket, demo host); Interactive Brokers and TradeStation cover futures alongside stocks. Rithmic and CQG are professional routing stacks (Protobuf/C++/FIX) used by prop firms. For research data, Databento sells normalized CME tick and depth data.
Side-by-side comparison
| API | Markets | Auth | Paper / sandbox | Pricing | In AlgoGP |
|---|---|---|---|---|---|
| Tradovate | Futures | REST + API key | Demo environment (demo.tradovateapi.com) | API Access add-on; live needs >$1,000 equity | Guide |
| Interactive Brokers | Stocks, ETFs, Options, Futures, Forex, Bonds, Crypto | Local gateway | Paper trading account (TWS port 7497, Gateway 4002) | API free with account; market data subscriptions extra | Guide |
| TradeStation | Stocks, ETFs, Options, Futures | OAuth login | Simulated (SIM) trading account | API free; funded account needed for a key | Guide |
| Rithmic | Futures | Local gateway | Exchange simulator (14-day trial) | Commercial; via your FCM or prop firm | Guide |
| CQG | Futures, Options | Local gateway | Simulated environment; conformance testing | Commercial; exchange entitlements extra | Guide |
| NinjaTrader | Futures, Forex | Local gateway | Simulated accounts inside the platform | Platform free to use; licenses optional | Guide |
| Databento | Stocks, Futures, Options | REST + API key | — | Usage-based; Standard $199/mo | Guide |
Which one should you pick?
Tradovate if you want REST/WebSocket futures trading without a desktop gateway.
Build with TradovateInteractive Brokers if you trade futures alongside stocks and FX globally.
Build with Interactive BrokersTradeStation if you want US futures and options through OAuth REST.
Build with TradeStationRithmic if your prop firm uses it or latency matters.
Build with RithmicDatabento if you need tick or order-book history to research a futures strategy.
Build with Databento
Frequently asked questions
Does NinjaTrader have a futures API?
Not a cloud REST API; it offers NinjaScript and the Automated Trading Interface. Its sister broker Tradovate has a REST API.
Test the strategy before you pick the API
Describe your idea to AlgoGP’s copilot, backtest it on years of stock, crypto or forex data with realistic costs, then export Python wired to Tradovate or any built-in broker. Swap the broker later without touching the strategy.
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AlgoGP is not affiliated with any provider listed. Details change; check each provider’s documentation. Nothing here is investment advice.