Critical Risk →

binance_us_cancel_replace

Cancel an existing order and place a new order on the same symbol atomically. This is useful for modifying order parameters.

How to control binance_us_cancel_replace ↓

AI agents use binance_us_cancel_replace to commit financial operations through BNB Chain MCP — usually the final step of a payment, billing, or trading workflow. A call moves real money.

Critical Risk

This tool cancels an existing financial order and places a new one atomically on Binance US, directly involving financial trading operations. Misuse could result in unintended trades, financial losses, or market manipulation, making it a critical financial risk.

From the tool's definition Cancel an existing order and place a new order on the same symbol atomically

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

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 binance_us_cancel_replace:

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

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

  1. Create a free account and register BNB Chain MCP — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Go deeper

What does the binance_us_cancel_replace tool do? +

Cancel an existing order and place a new order on the same symbol atomically. This is useful for modifying order parameters. 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 binance_us_cancel_replace? +

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

binance_us_cancel_replace 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 binance_us_cancel_replace? +

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

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

binance_us_cancel_replace 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.

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