Get implied volatility (IV) data for a stock. IV represents market expectations of future volatility. Compare IV to historical volatility to identify high or low volatility environments. Returns current IV, IV by expiration, and comparison with historical volatility.
AI agents call get_implied_volatility to retrieve information from Mcp Financex without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool fetches financial market data (implied volatility metrics) for analytical purposes. It performs no side effects, does not execute trades, does not modify data, and does not commit financial obligations. While hosted on a financial data server, the tool itself is purely informational—querying and returning calculated metrics to support investment decision-making.
From the tool's definition Tool retrieves and queries IV data ('Get implied volatility data', 'Returns current IV, IV by expiration, and comparison with historical volatility') with no mutation, deletion, or financial transaction.
Attacks that exploit this kind of access
Get implied volatility (IV) data for a stock. IV represents market expectations of future volatility. Compare IV to historical volatility to identify high or low volatility environments. Returns current IV, IV by expiration, and comparison with historical volatility. It is categorised as a Read tool in the Mcp Financex MCP Server, which means it retrieves data without modifying state.
Register the Mcp Financex MCP server in PolicyLayer and add a rule for get_implied_volatility: 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 Mcp Financex. Nothing to install.
get_implied_volatility 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_implied_volatility 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_implied_volatility. 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_implied_volatility is provided by the Mcp Financex MCP server (xerktech/mcp-financex). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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