The FMP ETF Sector Weighting API provides a breakdown of the percentage of an ETF
AI agents call getFundSectorWeighting 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 financial data (sector weighting breakdown for ETFs) without creating, modifying, deleting, or executing any operations. It is a straightforward query that returns informational data, fitting the Read category. Severity is low because misuse would only result in information disclosure, not financial transactions or data loss.
From the tool's definition Tool name 'getFundSectorWeighting' and description 'provides a breakdown of the percentage of an ETF' indicate data retrieval with no modification, execution, or deletion capabilities.
Attacks that exploit this kind of access
The FMP ETF Sector Weighting API provides a breakdown of the percentage of an ETF. 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 getFundSectorWeighting: 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.
getFundSectorWeighting 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 getFundSectorWeighting 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 getFundSectorWeighting. 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.
getFundSectorWeighting 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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