cancelOrder

Cancel a single open order by

SERVERBybit MCP Server SOURCEbybit-exchange/trading-mcp

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/bybit-exchange-trading-mcp/cancelorder.md

WHAT IT DOES

What cancelOrder does on Bybit MCP Server

AI agents call cancelOrder to permanently remove resources in Bybit MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why cancelOrder is rated Critical

Cancelling an order is an irreversible action in the context of trading — once cancelled, the order no longer exists and cannot be reinstated. This is destructive in nature as it permanently removes an active order from the exchange. Given this is on a cryptocurrency trading platform, misuse could result in significant financial impact by cancelling legitimate open orders.

From the tool's definition cancelOrder - 'Cancel a single open order'

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs cancelOrder safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Bybit MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cancelOrder, this is the rule to start with:

cancelOrder Hidden

cancelOrder is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

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

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Bybit MCP Server, apply this rule, and every cancelOrder call is checked against it from then on.

FAQ

Questions about cancelOrder

What does the cancelOrder tool do? +

Cancel a single open order by. It is categorised as a Destructive tool in the Bybit MCP Server 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 cancelOrder? +

Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for cancelOrder: 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 Bybit MCP Server. Nothing to install.

What risk level is cancelOrder? +

cancelOrder 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 cancelOrder? +

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

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

cancelOrder is provided by the Bybit MCP Server MCP server (bybit-exchange/trading-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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