polymarket_cancel_order

Cancel an existing order. Requires API key authentication.

SERVERPolymarket MCP Server SOURCEasthetech/mewcp-polymarket

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/asthetech-cl-mcp-polymarket/polymarket-cancel-order.md

WHAT IT DOES

What polymarket_cancel_order does on Polymarket MCP Server

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

RISK

Why polymarket_cancel_order is rated Critical

An AI agent that decides to call polymarket_cancel_order doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from Polymarket MCP Server is gone. There is no undo for destructive operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs polymarket_cancel_order safely

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

polymarket_cancel_order Hidden

polymarket_cancel_order 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": [
    "polymarket_cancel_order"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about polymarket_cancel_order

What does the polymarket_cancel_order tool do? +

Cancel an existing order. Requires API key authentication. It is categorised as a Destructive tool in the Polymarket 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 polymarket_cancel_order? +

Register the Polymarket MCP Server MCP server in PolicyLayer and add a rule for polymarket_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 Polymarket MCP Server. Nothing to install.

What risk level is polymarket_cancel_order? +

polymarket_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 polymarket_cancel_order? +

Yes. Add a rate_limit block to the polymarket_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 polymarket_cancel_order completely? +

Set action: deny in the PolicyLayer policy for polymarket_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 polymarket_cancel_order? +

polymarket_cancel_order is provided by the Polymarket MCP Server MCP server (asthetech/mewcp-polymarket). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Polymarket MCP Server, and thousands of servers like it.

This server

All 11 Polymarket MCP Server tools → Critical-risk tools on this server →

Across the catalogue

cancel_order on Lighter MCP →sms_cancel_scheduled on Twilio SMS MCP Server → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern database agents →Blast radius →Tool call approval →