list_investments

THE RISK

Low Risk

Why list_investments needs a policy

This tool retrieves or queries investment product data with no side effects. It does not create, modify, delete, or transfer financial assets—it only presents information. While the server context involves payments and financial operations, this specific tool performs read-only data retrieval, making it a Read category risk.

From the tool's definition Tool name 'list_investments' uses 'list' verb; description states 'List investment products' indicating data retrieval operation. The phrase 'via Open Finance' confirms this is a query/retrieval interface with no modification capability.

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

POLICY

How to control list_investments

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Ap2, and nothing reaches the server without passing your rules. This is the rule we recommend for list_investments:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_investments": {}
  }
}

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

Create a free account and register Mcp Ap2 — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Mcp Ap2 tools

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All 1300 Mcp Ap2 tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about list_investments

What does the list_investments tool do? +

List investment products via Open Finance. It is categorised as a Read tool in the Mcp Ap2 MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_investments? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for list_investments: 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 Mcp Ap2. Nothing to install.

What risk level is list_investments? +

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

Can I rate-limit list_investments? +

Yes. Add a rate_limit block to the list_investments 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_investments completely? +

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

list_investments is provided by the Mcp Ap2 MCP server (@codespar/mcp-ap2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Ap2 tool call.

Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →