create_payment_request

THE RISK

Critical Risk

Why create_payment_request needs a policy

This tool creates payment requests that enter an approval workflow, which constitutes a commitment of financial resources. Even though it may require subsequent approval, the act of creating a payment request in a tax/invoicing context represents a financial commitment that could result in money movement.

From the tool's definition Tool name 'create_payment_request' combined with description 'Create a payment request for approval workflow' indicates it initiates financial transactions.

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

POLICY

How to control create_payment_request

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_payment_request:

policy.json

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

Any call to create_payment_request 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_payment_request

What does the create_payment_request tool do? +

Create a payment request for approval workflow. 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_payment_request? +

Register the Mcp Afip MCP server in PolicyLayer and add a rule for create_payment_request: 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_payment_request? +

create_payment_request 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_payment_request? +

Yes. Add a rate_limit block to the create_payment_request 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_payment_request completely? +

Set action: deny in the PolicyLayer policy for create_payment_request. 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_payment_request? +

create_payment_request 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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