BinanceCrossMarginTransfer

THE RISK

Critical Risk

This tool transfers funds between spot and cross-margin accounts on Binance. Cross-margin transfers are financial operations that commit or reallocate financial assets, affecting account balances and leverage positions. An AI agent misusing this could drain accounts, trigger margin calls, or cause significant financial loss. Financial category is the most severe applicable, superseding Execute.

From the tool's definition Tool name explicitly states 'BinanceCrossMarginTransfer' and description confirms it 'Execute[s] a cross margin account transfer. Transfer between spot and cross margin accounts.' — this directly moves funds between account types.

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

HOW TO CONTROL BINANCECROSSMARGINTRANSFER

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 BinanceCrossMarginTransfer:

policy.json

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

Any call to BinanceCrossMarginTransfer 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.

GATE THIS TOOL →

Free to start. No card required.

EXPLORE

More BNB Chain MCP tools

Financial binance_us_cancel_oco Cancel an entire OCO order on Binance.US. Cancelling any individual leg will cancel the en Financial binance_us_cancel_replace Cancel an existing order and place a new order on the same symbol atomically. This is usef Financial binance_us_cust_cancel_oco Cancel an entire OCO (One-Cancels-the-Other) order list. ⚠️ REQUIRES CUSTODIAL SOLUTION A Financial binance_us_cust_cancel_order Cancel an active custodial trade order. ⚠️ REQUIRES CUSTODIAL SOLUTION API KEY Either or Financial BinanceCrossMarginCancelAllOrders Cancel all open orders on a symbol in Cross Margin account. Financial BinanceDeliveryCancelBatchOrders Cancel multiple COIN-M Futures orders in batch (max 10). Financial BinanceFuturesCancelAllOpenOrders Cancel all open orders for a symbol. Use with caution as this cancels ALL open orders. Financial BinanceFuturesCancelBatchOrders Cancel multiple USD-M Futures orders in batch (max 10 orders).

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.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

What does the BinanceCrossMarginTransfer tool do? +

Execute a cross margin account transfer. Transfer between spot and cross margin accounts. 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 BinanceCrossMarginTransfer? +

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

BinanceCrossMarginTransfer 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 BinanceCrossMarginTransfer? +

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

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

BinanceCrossMarginTransfer 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 BINANCECROSSMARGINTRANSFER ON BNB CHAIN MCP DOES

// THE RISK

// HOW TO CONTROL BINANCECROSSMARGINTRANSFER

// EXPLORE