create_withdrawal

THE RISK

Critical Risk

Why create_withdrawal needs a policy

This tool moves money out of an account by creating a withdrawal request. Regardless of whether it's crypto or fiat, this is a direct financial operation that commits a real monetary outflow. Misuse could result in irreversible transfer of funds to unintended destinations, making it critical severity.

From the tool's definition "Create a withdrawal request (crypto or fiat)" — explicitly initiates a financial withdrawal of funds, either in cryptocurrency or fiat currency.

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

POLICY

How to control create_withdrawal

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

policy.json

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

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

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

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EXPLORE

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Go deeper

Critical-risk tools in Mcp Afip → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Human-in-the-loop → When a tool call should wait for a person — and when policy can decide alone.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

Questions about create_withdrawal

What does the create_withdrawal tool do? +

Create a withdrawal request (crypto or fiat). It is categorised as a Financial tool in the Mcp Afip MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on create_withdrawal? +

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

What risk level is create_withdrawal? +

create_withdrawal 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_withdrawal? +

Yes. Add a rate_limit block to the create_withdrawal 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_withdrawal completely? +

Set action: deny in the PolicyLayer policy for create_withdrawal. 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_withdrawal? +

create_withdrawal is provided by the Mcp Afip MCP server (codespar/mcp-dev-latam). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Afip tool call.

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

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