place_option_market_order · Alpaca MCP Server MCP

WHAT IT DOES

What place_option_market_order does on Alpaca MCP Server

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.

WHY IT NEEDS A POLICY

Why place_option_market_order needs a policy

Despite the empty description, the tool name unambiguously indicates placing a market order for options contracts, which is a financial transaction that commits real monetary obligations. Options trading carries high financial risk and is irreversible once executed. The server context confirms this is a live trading environment interacting with Alpaca's trading infrastructure.

From the tool's definition Tool name 'place_option_market_order' combined with server description explicitly supporting 'options trading' via Alpaca's Trading API

Attacks that exploit this kind of access

Questions about place_option_market_order

What does the place_option_market_order tool do? +

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.

How do I enforce a policy on place_option_market_order? +

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.

What risk level is place_option_market_order? +

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.

Can I rate-limit place_option_market_order? +

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.

How do I block place_option_market_order completely? +

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.

What MCP server provides place_option_market_order? +

place_option_market_order is provided by the Alpaca MCP Server MCP server (metachain-org/alpaca-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.