| Alpaca | Stocks, options, crypto | Market, limit, stop, stop-limit, trailing ($ or %)Crypto: no stop | Stocks: Day, GTC, OPG, CLS, IOC, FOKOptions: Day, GTCCrypto: GTC, IOC (Day sent as GTC) | ✓YesStocks (limit orders) | ✓Yes | ✓YesStocks, long and short | ✓Yes | Live stream + 30 s safety check | API key and secretNothing to renew |
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| Charles Schwab | Stocks, options | Market, limit, stop, stop-limit, trailing ($ or %) | Day, GTC, IOC, FOK | ✓YesStocks, limit only | ✓Yes | ✓YesStocks and options | ✓YesSell short / buy to cover | Live stream + 30 s safety check | OAuth in your browserRe-authorize every 7 days (the app warns you 2 days ahead) |
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| E*TRADE | Stocks, options | Market, limit, stop, stop-limitNo trailing | Day, GTC, IOC, FOK | ✓YesStocks | ✓Yes | ✕NoE*TRADE's API has no OCO | ✓Yes | Checked every 5 s | OAuthE*TRADE ends sessions at midnight ET, so sign in daily |
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| tastytrade | Stocks, options, futures, crypto | Market, limit, stop, stop-limitNo trailing | Day, GTC, IOC (crypto market orders IOC) | ✕No | ✓Yes | ✓YesNot crypto | ✓Yes | Checked every 5 s | OAuth refresh token from your tastytrade OAuth appNothing to renew |
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| Interactive Brokers | Stocks, options, futures, crypto (Paxos) | Market, limit, stop, stop-limit, trailing ($ or %) | Day, GTC, IOC, OPG (crypto market orders IOC) | ✓YesStocks | ✓Yes | ✓YesNot crypto | ✓Yes | Checked every 5 s | Runs through IBKR's Client Portal Gateway on your PCSign in to the gateway |
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| TradeStation | Stocks, options, futures | Market, limit, stop, stop-limit, trailing | Day, GTC, IOC, FOK, OPG, CLO, plus extended-session Day/GTC | ✓YesStocks | ✓Yes | ✓YesTradeStation brackets | ✓Yes | Checked every 3 s | OAuth in your browserRenewed automatically |
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| Coinbase | Crypto (spot) | Market, limit, stop-limit | GTC, IOC, FOK by order type (Day sent as GTC) | n/a24/7 | ✕No | ✕No | ✕NoSpot only | Checked every 5 s | Coinbase Developer Platform API key |
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| Kraken | Crypto (spot) | Market, limit, stop, stop-limit, trailing | GTC, IOC, FOK (Day sent as GTC) | n/a24/7 | ✕No | ✕No | ✕NoSpot only | Checked every 5 s | API key and secret |
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| PaperBuilt in | Stocks, options, futures, crypto | All of the above, simulated at live bid/ask | Day, GTC, IOC, FOK | ✓YesLimit only | ✓YesDefined-risk | ✓Yes | ✓Yes | Instant | None$100k starting balance |
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