schedule_pix

THE RISK

Critical Risk

Why schedule_pix needs a policy

This tool schedules a PIX transfer, which is a financial payment operation. PIX is a Brazilian instant payment system, and scheduling a transfer directly commits a financial obligation/movement of funds. This falls squarely in the Financial category. Misuse by an AI agent could result in unauthorized fund transfers, making severity critical.

From the tool's definition Schedule a future-dated PIX transfer

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

POLICY

How to control schedule_pix

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 schedule_pix:

policy.json

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

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

Create a free account and register Mcp Ap2 — 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 Ap2 → 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 schedule_pix

What does the schedule_pix tool do? +

Schedule a future-dated PIX transfer. 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 schedule_pix? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for schedule_pix: 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 schedule_pix? +

schedule_pix 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 schedule_pix? +

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

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

schedule_pix 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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