polymarket_create_order

Create a new order on Polymarket. Requires API key authentication. Order will be placed on the CLOB.

SERVERPolymarket MCP Server SOURCEasthetech/mewcp-polymarket

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/asthetech-cl-mcp-polymarket/polymarket-create-order.md

WHAT IT DOES

What polymarket_create_order does on Polymarket MCP Server

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.

RISK

Why polymarket_create_order is rated Critical

Placing an order on a prediction market's order book constitutes a financial commitment. If an AI agent misuses this tool, it could place unintended trades with real monetary consequences, potentially losing funds. This is a direct financial action requiring authenticated access, making it the highest severity category.

From the tool's definition "Create a new order on Polymarket" and "Order will be placed on the CLOB" — CLOB (Central Limit Order Book) means this commits real financial orders on a prediction market exchange.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs polymarket_create_order safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Polymarket MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For polymarket_create_order, this is the rule to start with:

polymarket_create_order Approval-gated

Any call to polymarket_create_order is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "polymarket_create_order": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Polymarket MCP Server, apply this rule, and every polymarket_create_order call is checked against it from then on.

FAQ

Questions about polymarket_create_order

What does the polymarket_create_order tool do? +

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.

How do I enforce a policy on polymarket_create_order? +

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.

What risk level is polymarket_create_order? +

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.

Can I rate-limit polymarket_create_order? +

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.

How do I block polymarket_create_order completely? +

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.

What MCP server provides polymarket_create_order? +

polymarket_create_order is provided by the Polymarket MCP Server MCP server (asthetech/mewcp-polymarket). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Polymarket MCP Server, and thousands of servers like it.

This server

All 11 Polymarket MCP Server tools → Critical-risk tools on this server →

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create_external_order on Thinkific MCP Server →place_limit_order on Lighter MCP →place_order on MCP MetaTrader 4 Server →fundos_create_capital_call on Fundos → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern MCP payment tools →Human-in-the-loop →Tool call approval →