orders.buy

SERVERPolymarket Agent Mcp SOURCEdemwick/polymarket-agent-mcp

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/demwick-polymarket-agent-mcp/orders.buy.md

WHAT IT DOES

What orders.buy does on Polymarket Agent Mcp

AI agents use orders.buy to commit financial operations through Polymarket Agent Mcp, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why orders.buy is rated Critical

This tool directly executes financial transactions by purchasing outcome shares with real USDC funds on the Polymarket CLOB (Central Limit Order Book). It commits real capital to a trade, making it a Financial category tool.

From the tool's definition In live mode, places a real CLOB order — buys outcome shares using USDC on Polymarket prediction markets

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs orders.buy safely

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

orders.buy Approval-gated

Any call to orders.buy 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": {
    "orders.buy": {
      "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 Agent Mcp, apply this rule, and every orders.buy call is checked against it from then on.

FAQ

Questions about orders.buy

What does the orders.buy tool do? +

Buy outcome shares on a Polymarket market. Specify condition_id, USDC amount, and optionally a limit price. Runs a market quality check before executing. In preview mode, simulates the trade. In live mode, places a real CLOB order. It is categorised as a Financial tool in the Polymarket Agent Mcp MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on orders.buy? +

Register the Polymarket Agent MCP server in PolicyLayer and add a rule for orders.buy: 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 Agent Mcp. Nothing to install.

What risk level is orders.buy? +

orders.buy 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 orders.buy? +

Yes. Add a rate_limit block to the orders.buy 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 orders.buy completely? +

Set action: deny in the PolicyLayer policy for orders.buy. 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 orders.buy? +

orders.buy is provided by the Polymarket Agent MCP server (demwick/polymarket-agent-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Polymarket Agent, and thousands of servers like it.

This server

All 48 Polymarket Agent tools → Critical-risk tools on this server →

Across the catalogue

All critical-risk MCP tools → The MCP Attack Database →

Guides

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