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create_pix_charge_static

Create a static Pix charge (reusable QR code tied to a merchant Pix key). Returns EMV copy-paste payload and QR code image. Use for points-of-sale or donations where the same QR is shown to many payers.

How to control create_pix_charge_static ↓

What create_pix_charge_static does on Mcp Afip

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

Critical Risk

Why create_pix_charge_static needs a policy

This tool commits financial obligations by establishing payment collection infrastructure. Creating a Pix charge—even a static one—is a financial operation that moves money from payers to a merchant. The reusable nature and merchant key binding indicate this tool directly facilitates fund transfers.

From the tool's definition Tool creates a Pix charge with a reusable QR code tied to a merchant Pix key. Pix is Brazil's real-time payment system.

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

How to control create_pix_charge_static

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_pix_charge_static:

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

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

  1. Create a free account and register Mcp Afip — 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_pix_charge_static

What does the create_pix_charge_static tool do? +

Create a static Pix charge (reusable QR code tied to a merchant Pix key). Returns EMV copy-paste payload and QR code image. Use for points-of-sale or donations where the same QR is shown to many payers. 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_pix_charge_static? +

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

create_pix_charge_static 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_pix_charge_static? +

Yes. Add a rate_limit block to the create_pix_charge_static 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_pix_charge_static completely? +

Set action: deny in the PolicyLayer policy for create_pix_charge_static. 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_pix_charge_static? +

create_pix_charge_static 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.

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