Low Risk

get_quote

Fetch real-time stock quotes with data quality reporting and caching. Supports batch processing of multiple symbols.

How to control get_quote ↓

What get_quote does on Yfnhanced

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

Low Risk

Why get_quote needs a policy

This tool retrieves market data (stock quotes) without creating, modifying, deleting, or executing operations. It is purely informational—fetching and reporting existing financial data. While the server is financial in nature, this specific tool does not move money, commit financial obligations, or perform irreversible actions. The data quality reporting and caching mentioned are auxiliary read-side operations.

From the tool's definition Tool name 'get_quote' and description 'Fetch real-time stock quotes' indicate data retrieval with no modification. Batch processing of symbols is also a read operation. No mutation, deletion, execution, or financial transaction capabilities are present.

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

How to control get_quote

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

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

get_quote 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 Yfnhanced — 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_quote

What does the get_quote tool do? +

Fetch real-time stock quotes with data quality reporting and caching. Supports batch processing of multiple symbols. It is categorised as a Read tool in the Yfnhanced MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_quote? +

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

What risk level is get_quote? +

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

Can I rate-limit get_quote? +

Yes. Add a rate_limit block to the get_quote 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_quote completely? +

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

get_quote is provided by the Yfnhanced MCP server (kanishka-namdeo/yfnhanced-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Yfnhanced tool call.

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

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

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