Critical-risk tools in Alpaca Trading MCP Server
6 of the 8 tools in Alpaca Trading MCP Server are classified as critical risk. This page profiles those tools specifically, with recommended policy actions and the attack patterns that target them.
Every operation listed below is an action PolicyLayer recommends controlling at the transport layer. Open any tool to see the full profile, risk score, and YAML policy snippet.
Tools at critical risk
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cancel_orderDestructiveCancel an open order by its ID.
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place_stop_limit_orderFinancialplace_stop_limit_order
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place_stop_orderFinancialplace_stop_order
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place_limit_orderFinancialplace_limit_order
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place_market_orderFinancialPlace a market order to buy or sell a stock.
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close_positionFinancialClose an open position for a specific symbol.
Attacks that target this class
Critical-risk tools in any server share these documented attack patterns. Each links to the full case and the defensive policy.