BinanceCrossMarginBorrow

THE RISK

Critical Risk

Why BinanceCrossMarginBorrow needs a policy

This tool initiates a margin loan/borrowing operation, which is a financial commitment that incurs interest obligations and increases liquidation risk. Misuse by an AI agent could result in unauthorized debt positions and significant financial exposure.

From the tool's definition Borrow assets in Cross Margin account. Apply for a loan with the specified asset and amount.

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

POLICY

How to control BinanceCrossMarginBorrow

PolicyLayer is an MCP gateway — it sits between your AI agents and Sperax Ecosystem Crypto & DeFI MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for BinanceCrossMarginBorrow:

policy.json

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

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

Create a free account and register Sperax Ecosystem Crypto & DeFI MCP Server — 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

Related tools and policies

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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.
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FAQ

Questions about BinanceCrossMarginBorrow

What does the BinanceCrossMarginBorrow tool do? +

Borrow assets in Cross Margin account. Apply for a loan with the specified asset and amount. It is categorised as a Financial tool in the Sperax Ecosystem Crypto & DeFI MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on BinanceCrossMarginBorrow? +

Register the Sperax Ecosystem Crypto & DeFI MCP Server MCP server in PolicyLayer and add a rule for BinanceCrossMarginBorrow: 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 Sperax Ecosystem Crypto & DeFI MCP Server. Nothing to install.

What risk level is BinanceCrossMarginBorrow? +

BinanceCrossMarginBorrow 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 BinanceCrossMarginBorrow? +

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

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

BinanceCrossMarginBorrow is provided by the Sperax Ecosystem Crypto & DeFI MCP Server MCP server (sperax/sperax-crypto-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Sperax Ecosystem Crypto & DeFI MCP Server tool call.

Start from Sperax Ecosystem Crypto & DeFI MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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