Critical Risk →

create_order

Create a buy or sell order

How to control create_order ↓

What create_order does on Mcp Ap2

AI agents use create_order to commit financial operations through Mcp Ap2 — usually the final step of a payment, billing, or trading workflow. A call moves real money.

Critical Risk

Why create_order needs a policy

Creating a buy or sell order commits a financial obligation or triggers a market transaction. Given this is part of AP2 (Agent-to-Agent Payment Protocol), misuse could result in unauthorized purchases or sales, making it Financial category with critical severity due to the potential for significant financial harm if an AI agent misuses it.

From the tool's definition 'Create a buy or sell order' — directly initiates a financial transaction (purchase or sale order) within a payment protocol context

Documented attack patterns abuse exactly the kind of access create_order gives an agent:

How to control create_order

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Ap2, and nothing reaches the server without passing your rules. This is the rule we recommend for create_order:

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

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

  1. Create a free account and register Mcp Ap2 — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about create_order

What does the create_order tool do? +

Create a buy or sell order. It is categorised as a Financial tool in the Mcp Ap2 MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on create_order? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for 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 Mcp Ap2. Nothing to install.

What risk level is create_order? +

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 create_order? +

Yes. Add a rate_limit block to the 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 create_order completely? +

Set action: deny in the PolicyLayer policy for 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 create_order? +

create_order is provided by the Mcp Ap2 MCP server (@codespar/mcp-ap2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Ap2 tool call.

Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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