gnfd_withdraw_from_payment

THE RISK

Critical Risk

Withdrawal of funds is a financial operation that commits financial obligations and transfers money. Even though the severity depends on the amount withdrawn and account permissions, any tool that can move funds from an account to another destination presents a high-severity financial risk. An AI agent with unconstrained access could drain payment accounts.

From the tool's definition Tool name includes 'withdraw' and description states 'Withdraw funds from a payment account'. This directly moves money/funds out of an account.

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

HOW TO CONTROL GNFD_WITHDRAW_FROM_PAYMENT

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

policy.json

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

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

Create a free account and register BNB Chain MCP — 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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All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
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FAQ

What does the gnfd_withdraw_from_payment tool do? +

Withdraw funds from a payment account. It is categorised as a Financial tool in the BNB Chain MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on gnfd_withdraw_from_payment? +

Register the BNB Chain MCP server in PolicyLayer and add a rule for gnfd_withdraw_from_payment: 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 BNB Chain MCP. Nothing to install.

What risk level is gnfd_withdraw_from_payment? +

gnfd_withdraw_from_payment 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 gnfd_withdraw_from_payment? +

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

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

gnfd_withdraw_from_payment is provided by the BNB Chain MCP server (nirholas/bnbchain-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every BNB Chain MCP tool call.

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// WHAT GNFD_WITHDRAW_FROM_PAYMENT ON BNB CHAIN MCP DOES

// THE RISK

// HOW TO CONTROL GNFD_WITHDRAW_FROM_PAYMENT

// EXPLORE