gnfd_create_payment_account

THE RISK

Critical Risk

Creating a payment account is a financial operation that sets up infrastructure for moving or managing funds within the BNB Chain ecosystem (BNB Greenfield and Sperax Protocol context). While the immediate action is account creation (Write-like), the purpose and context are inherently financial.

From the tool's definition Tool name contains 'payment_account' and description states 'Create a new payment account'. The BNB Chain MCP server description explicitly mentions 'execute token transactions' and handling of financial operations.

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

HOW TO CONTROL GNFD_CREATE_PAYMENT_ACCOUNT

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_create_payment_account:

policy.json

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

Any call to gnfd_create_payment_account 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 1240 BNB Chain MCP tools →

Financial tools on other servers

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Go deeper

Critical-risk tools in BNB Chain MCP → 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.
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FAQ

What does the gnfd_create_payment_account tool do? +

Create a new 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_create_payment_account? +

Register the BNB Chain MCP server in PolicyLayer and add a rule for gnfd_create_payment_account: 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_create_payment_account? +

gnfd_create_payment_account 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_create_payment_account? +

Yes. Add a rate_limit block to the gnfd_create_payment_account 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_create_payment_account completely? +

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

gnfd_create_payment_account 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.

Deterministic rules across all 1240 BNB Chain MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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// WHAT GNFD_CREATE_PAYMENT_ACCOUNT ON BNB CHAIN MCP DOES

// THE RISK

// HOW TO CONTROL GNFD_CREATE_PAYMENT_ACCOUNT

// EXPLORE