Low Risk

ibkr_get_fundamental_data

Return a fundamentals report for a contract.

How to control ibkr_get_fundamental_data ↓

What ibkr_get_fundamental_data does on Ibkr

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

Low Risk

Why ibkr_get_fundamental_data needs a policy

This tool retrieves and returns fundamental analysis data (e.g., earnings, P/E ratios, financial metrics) for a financial contract. It is a read-only query operation that does not modify account state, execute orders, delete data, or move money. The action is passive data retrieval with no side effects.

From the tool's definition Tool name 'ibkr_get_fundamental_data' and description 'Return a fundamentals report for a contract' indicate pure data retrieval with no modifications, deletions, or financial transactions.

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

How to control ibkr_get_fundamental_data

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

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

ibkr_get_fundamental_data 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 Ibkr — 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 ibkr_get_fundamental_data

What does the ibkr_get_fundamental_data tool do? +

Return a fundamentals report for a contract. It is categorised as a Read tool in the Ibkr MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on ibkr_get_fundamental_data? +

Register the Ibkr MCP server in PolicyLayer and add a rule for ibkr_get_fundamental_data: 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 Ibkr. Nothing to install.

What risk level is ibkr_get_fundamental_data? +

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

Can I rate-limit ibkr_get_fundamental_data? +

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

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

ibkr_get_fundamental_data is provided by the Ibkr MCP server (patrickpxp/ibkr-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Ibkr tool call.

Start from Ibkr, 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.

33 Ibkr tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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