get_13f_filings

THE RISK

Low Risk

Why get_13f_filings needs a policy

This tool retrieves public SEC filing data without modifying, deleting, or executing operations. It poses minimal risk as the data is already public and the operation is read-only.

From the tool's definition Tool name 'get_13f_filings' and description 'Get Form 13F filings for an institutional investor' indicate data retrieval only. Form 13F filings are public SEC documents. The verb 'Get' confirms query/retrieval with no side effects.

Documented attack patterns abuse exactly the kind of access get_13f_filings gives an agent:

POLICY

How to control get_13f_filings

PolicyLayer is an MCP gateway — it sits between your AI agents and SEC MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_13f_filings:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_13f_filings": {}
  }
}

get_13f_filings 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 SEC MCP — 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 →

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EXPLORE

Related tools and policies

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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 get_13f_filings

What does the get_13f_filings tool do? +

Get Form 13F filings for an institutional investor. It is categorised as a Read tool in the SEC MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_13f_filings? +

Register the SEC MCP server in PolicyLayer and add a rule for get_13f_filings: 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 SEC MCP. Nothing to install.

What risk level is get_13f_filings? +

get_13f_filings is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_13f_filings? +

Yes. Add a rate_limit block to the get_13f_filings 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 get_13f_filings completely? +

Set action: deny in the PolicyLayer policy for get_13f_filings. 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 get_13f_filings? +

get_13f_filings is provided by the SEC MCP server (luisrincon23/sec-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every SEC MCP tool call.

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

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