Access simplified stock chart data using the FMP Basic Stock Chart API. This API provides essential charting information, including date, price, and trading volume, making it ideal for tracking stock performance with minimal data and creating basic price and volume charts.
AI agents call getLightChart to retrieve information from Financial Modeling Prep MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical stock chart data (dates, prices, volumes) from the FMP API. It is a read-only operation that queries and returns financial market data without any side effects, modifications, or execution capabilities. The blast radius of misuse is minimal—an agent could retrieve excessive amounts of chart data but cannot modify, delete, or execute operations.
From the tool's definition Tool name 'getLightChart' and description state it 'provides essential charting information, including date, price, and trading volume' for 'tracking stock performance' and 'creating basic price and volume charts.' These are retrieval operations with no…
Attacks that exploit this kind of access
Access simplified stock chart data using the FMP Basic Stock Chart API. This API provides essential charting information, including date, price, and trading volume, making it ideal for tracking stock performance with minimal data and creating basic price and volume charts. It is categorised as a Read tool in the Financial Modeling Prep MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Financial Modeling Prep MCP Server MCP server in PolicyLayer and add a rule for getLightChart: 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 Financial Modeling Prep MCP Server. Nothing to install.
getLightChart 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 getLightChart 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 getLightChart. 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.
getLightChart is provided by the Financial Modeling Prep MCP Server MCP server (vijitdaroch/financial-modeling-prep-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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