Create a limit order on Polymarket.
AI agents use create_limit_order to commit financial operations through Polymarket MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Creating a limit order on Polymarket directly commits financial resources to a trade on a prediction market. This is a financial transaction that places real money at risk. The server description explicitly mentions 'trading execution' and 'autonomously trade', confirming this is a live financial action. Misuse by an AI agent could result in unintended financial commitments or losses.
From the tool's definition 'Create a limit order on Polymarket' — places a financial order on a prediction market trading platform, committing funds at a specified price
Attacks that exploit this kind of access
Create a limit order on Polymarket. It is categorised as a Financial tool in the Polymarket MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Polymarket MCP Server MCP server in PolicyLayer and add a rule for create_limit_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 Polymarket MCP Server. Nothing to install.
create_limit_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 create_limit_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 create_limit_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.
create_limit_order is provided by the Polymarket MCP Server MCP server (nancheng582-jpg/polymarket-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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