get_current_price

THE RISK

Low Risk

Why get_current_price needs a policy

This is a read-only operation that retrieves current market data. It has no capability to modify, execute transactions, delete data, or trigger external operations. The blast radius of misuse is minimal—an agent could only retrieve publicly available stock price information. No reversible or irreversible modifications are possible.

From the tool's definition Tool name 'get_current_price' and description 'Get current stock price and market data' indicate data retrieval with no modification or side effects. This queries publicly available market information from SEC EDGAR or related sources.

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

POLICY

How to control get_current_price

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_current_price:

policy.json

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

get_current_price 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.

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EXPLORE

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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 →
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FAQ

Questions about get_current_price

What does the get_current_price tool do? +

Get current stock price and market data. 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_current_price? +

Register the SEC MCP server in PolicyLayer and add a rule for get_current_price: 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_current_price? +

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

Can I rate-limit get_current_price? +

Yes. Add a rate_limit block to the get_current_price 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_current_price completely? +

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

get_current_price 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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