Get real-time stock quote data including price, change, volume, and key metrics
AI agents call get_quote to retrieve information from Yahoo Finance without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries real-time stock market data. It has no side effects—it neither modifies data, executes code, deletes information, nor commits financial transactions. The blast radius of misuse is minimal; an AI agent calling this tool repeatedly cannot cause harm beyond potentially exceeding rate limits or accessing publicly available information.
From the tool's definition Tool name 'get_quote' and description 'Get real-time stock quote data including price, change, volume, and key metrics' indicate retrieval of financial data without modification, deletion, or execution of commands.
Attacks that exploit this kind of access
Get real-time stock quote data including price, change, volume, and key metrics. It is categorised as a Read tool in the Yahoo Finance MCP Server, which means it retrieves data without modifying state.
Register the Yahoo Finance 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 Yahoo Finance. Nothing to install.
get_quote is a Read tool with low risk. Read-only tools are generally safe to allow by default.
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.
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.
get_quote is provided by the Yahoo Finance MCP server (nrempel/yahoo-finance-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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