place_option_market_order
AI agents use place_option_market_order to commit financial operations through Alpaca MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Despite an empty description, the tool name unambiguously indicates placing an options market order, which directly commits financial obligations by executing trades. Options trading carries significant financial risk including leverage and potential for large losses. The server context confirms this is a live trading platform, making this a Financial/critical classification.
From the tool's definition Tool name 'place_option_market_order' combined with server description explicitly supporting 'stock/options trading' and 'trading infrastructure'
Attacks that exploit this kind of access
place_option_market_order. It is categorised as a Financial tool in the Alpaca MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Alpaca MCP Server MCP server in PolicyLayer and add a rule for place_option_market_order: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Alpaca MCP Server. Nothing to install.
place_option_market_order is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the place_option_market_order rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for place_option_market_order. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
place_option_market_order is provided by the Alpaca MCP Server MCP server (jbkix06/alpaca_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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