Low Risk

get_stock_price

Get the latest stock price and related information for a given symbol.

How to control get_stock_price ↓

What get_stock_price does on Stock Market MCP Server

AI agents call get_stock_price to retrieve information from Stock Market 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 get_stock_price needs a policy

This tool retrieves current stock market data without modifying, deleting, or executing any operations. It has no capability to execute trades, modify data, or trigger external state changes. The blast radius of misuse is minimal—worst case an agent retrieves incorrect stock price information, which is informational only.

From the tool's definition Tool is named 'get_stock_price' with description 'Get the latest stock price and related information for a given symbol.' The verb 'Get' and action of retrieving stock price data indicate a read-only query operation with no side effects.

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

How to control get_stock_price

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

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

get_stock_price 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 Stock Market 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 get_stock_price

What does the get_stock_price tool do? +

Get the latest stock price and related information for a given symbol. It is categorised as a Read tool in the Stock Market MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_stock_price? +

Register the Stock Market MCP Server MCP server in PolicyLayer and add a rule for get_stock_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 Stock Market MCP Server. Nothing to install.

What risk level is get_stock_price? +

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

Can I rate-limit get_stock_price? +

Yes. Add a rate_limit block to the get_stock_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_stock_price completely? +

Set action: deny in the PolicyLayer policy for get_stock_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_stock_price? +

get_stock_price is provided by the Stock Market MCP Server MCP server (sverze/stock-market-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 Stock Market MCP Server tool call.

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

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6 Stock Market MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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