order_send

THE RISK

Critical Risk

'order_send' is the canonical MetaTrader 5 function for placing, modifying, and closing trading orders. On a platform explicitly described as enabling 'trading', this tool almost certainly submits financial orders (buy/sell) to the market, committing real financial obligations.

From the tool's definition Tool name 'order_send' on a MetaTrader 5 server described as enabling 'trading, market data access, and account management'. Sibling tools include trading and account management tools.

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

HOW TO CONTROL ORDER_SEND

PolicyLayer is an MCP gateway — it sits between your AI agents and MetaTrader 5 MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for order_send:

policy.json

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

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

Create a free account and register MetaTrader 5 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.

GATE THIS TOOL →

Free to start. No card required.

EXPLORE

More MetaTrader 5 MCP Server tools

Execute initialize initialize Execute shutdown Shut down the connection to the MetaTrader 5 terminal. Returns: bool: True if Execute login login Write symbol_select symbol_select Read get_account_info Get information about the current trading account. Important: Requires MT5 to be init Read get_last_error Get the last error code and description. Returns: Dict[str, Any]: Last error Read get_symbol_info Get information about a specific symbol. Args: symbol: Symbol name Retur Read get_symbol_info_tick get_symbol_info_tick

All 26 MetaTrader 5 MCP Server tools →

Financial tools on other servers

Atv build_deposit_tx Bitcoin MCP Server pay_invoice AbraFlexi bank_transaction_create Hilanet MCP decrease_coworker_salary

Go deeper

Critical-risk tools in MetaTrader 5 MCP Server → 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.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

What does the order_send tool do? +

order_send. It is categorised as a Financial tool in the MetaTrader 5 MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on order_send? +

Register the MetaTrader 5 MCP Server MCP server in PolicyLayer and add a rule for order_send: 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 MetaTrader 5 MCP Server. Nothing to install.

What risk level is order_send? +

order_send 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 order_send? +

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

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

order_send is provided by the MetaTrader 5 MCP Server MCP server (qoyyuum/mcp-metatrader5-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MetaTrader 5 MCP Server tool call.

Deterministic rules across all 26 MetaTrader 5 MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

GOVERN METATRADER 5 →

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26 MetaTrader 5 MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT ORDER_SEND ON METATRADER 5 MCP SERVER DOES

// THE RISK

// HOW TO CONTROL ORDER_SEND

// EXPLORE