Create a new order on Polymarket. Requires API key authentication. Order will be placed on the CLOB.
AI agents use polymarket_create_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 an order on a financial exchange directly commits or obligates funds, making this a Financial category action. Misuse by an AI agent could result in unintended trades, significant monetary loss, or market manipulation, warranting critical severity.
From the tool's definition "Create a new order on Polymarket" and "Order will be placed on the CLOB" — places a live financial order on a Central Limit Order Book, committing funds to a prediction market trade.
Attacks that exploit this kind of access
Create a new order on Polymarket. Requires API key authentication. Order will be placed on the CLOB. 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 polymarket_create_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.
polymarket_create_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 polymarket_create_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 polymarket_create_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.
polymarket_create_order is provided by the Polymarket MCP Server MCP server (Curious-Layer/cl-mcp-polymarket). 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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