comprar · IOL MCP Server MCP: Risk & Policy

WHAT IT DOES

What comprar does on IOL MCP Server

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

WHY IT NEEDS A POLICY

Why comprar needs a policy

This tool directly initiates a financial trade (buy order) on a brokerage platform, committing real funds to purchase securities. Misuse could result in unauthorized financial transactions with immediate monetary consequences. Financial is the most severe applicable category.

From the tool's definition "Crear una orden de compra" — creates a purchase/buy order on the InvertirOnline trading platform

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

comprar Approval-gated

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

View as policy code

policy.json

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

GATE THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches IOL MCP Server, so you can run agents against it safely.

FAQ

Questions about comprar

What does the comprar tool do? +

Crear una orden de compra. It is categorised as a Financial tool in the IOL MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on comprar? +

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

What risk level is comprar? +

comprar 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 comprar? +

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

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

comprar is provided by the IOL MCP Server MCP server (pgallar/iol-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.