api_ultrade_market_cancel_order

THE RISK

Critical Risk

Cancelling an open order permanently removes it from the trading system. While not moving funds directly, this is a destructive action in the financial domain—the order state cannot be recovered, only replaced. Given this is on a BNB Chain server involving token transactions and trading, the blast radius is significant if an AI agent cancels orders unintentionally or maliciously.

From the tool's definition Tool name contains 'cancel_order' and description states 'Cancel open order'. Cancellation of a financial order is an irreversible action that removes the order from the market and cannot be undone without creating a new order.

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

HOW TO CONTROL API_ULTRADE_MARKET_CANCEL_ORDER

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 api_ultrade_market_cancel_order:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "api_ultrade_market_cancel_order"
  ]
}

api_ultrade_market_cancel_order disappears from the agent's tool list entirely, and any attempt to call it is denied. 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.

RESTRICT THIS TOOL →

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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 →

Destructive 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.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

What does the api_ultrade_market_cancel_order tool do? +

Cancel open order. It is categorised as a Destructive tool in the BNB Chain MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on api_ultrade_market_cancel_order? +

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

api_ultrade_market_cancel_order is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit api_ultrade_market_cancel_order? +

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

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

api_ultrade_market_cancel_order 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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api_ultrade_market_cancel_order

// WHAT API_ULTRADE_MARKET_CANCEL_ORDER ON BNB CHAIN MCP DOES

// THE RISK

// HOW TO CONTROL API_ULTRADE_MARKET_CANCEL_ORDER

// EXPLORE