getStandardDeviation

Calculate the Standard Deviation for a stock using the FMP Standard Deviation API. This tool helps users analyze volatility and risk associated with historical price data.

SERVERFinancial Modeling Prep MCP Server SOURCEvijitdaroch/financial-modeling-prep-mcp-server

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/vijitdaroch-financial-modeling-prep-mcp-server/getstandarddeviation.md

WHAT IT DOES

What getStandardDeviation does on Financial Modeling Prep MCP Server

AI agents call getStandardDeviation to retrieve information from Financial Modeling Prep MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why getStandardDeviation is rated Low

This tool retrieves and calculates metrics from existing financial data without creating, modifying, deleting, or executing arbitrary code. It performs a read-only statistical analysis on historical stock price information. Standard deviation calculation is a passive analytical operation with no side effects or ability to affect systems or financial positions.

From the tool's definition Tool name is 'getStandardDeviation' and description states it 'Calculate[s] the Standard Deviation for a stock using the FMP Standard Deviation API' to 'analyze volatility and risk associated with historical price data.' The verb 'Calculate' paired with…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs getStandardDeviation safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Financial Modeling Prep MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For getStandardDeviation, this is the rule to start with:

getStandardDeviation Allowed

getStandardDeviation is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "getStandardDeviation": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Financial Modeling Prep MCP Server, apply this rule, and every getStandardDeviation call is checked against it from then on.

FAQ

Questions about getStandardDeviation

What does the getStandardDeviation tool do? +

Calculate the Standard Deviation for a stock using the FMP Standard Deviation API. This tool helps users analyze volatility and risk associated with historical price data. It is categorised as a Read tool in the Financial Modeling Prep MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on getStandardDeviation? +

Register the Financial Modeling Prep MCP Server MCP server in PolicyLayer and add a rule for getStandardDeviation: 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.

What risk level is getStandardDeviation? +

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

Can I rate-limit getStandardDeviation? +

Yes. Add a rate_limit block to the getStandardDeviation 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 getStandardDeviation completely? +

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

getStandardDeviation 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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