Low Risk

list_aliases

Retrieves a list of aliases for the authenticated User or Team

How to control list_aliases ↓

What list_aliases does on eToro MCP Server

AI agents call list_aliases to retrieve information from eToro MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why list_aliases needs a policy

This tool retrieves existing alias data for authenticated users or teams. It performs no creation, modification, deletion, or execution of external operations. The operation is read-only with no side effects, fitting the Read category. Severity is low because alias data is typically non-sensitive configuration metadata with limited blast radius if exposed to an AI agent.

From the tool's definition Tool name 'list_aliases' and description 'Retrieves a list of aliases' indicate a query operation that fetches data without modification.

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

How to control list_aliases

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_aliases": {}
  }
}

list_aliases is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register eToro MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about list_aliases

What does the list_aliases tool do? +

Retrieves a list of aliases for the authenticated User or Team. It is categorised as a Read tool in the eToro MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_aliases? +

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

What risk level is list_aliases? +

list_aliases is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_aliases? +

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

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

list_aliases is provided by the eToro MCP Server MCP server (shlomico-tr/etoroportfoliomcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every eToro MCP Server tool call.

Start from eToro MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

154 eToro MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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