getSMA
Calculate the Simple Moving Average (SMA) for a stock using the FMP SMA API. This tool helps users analyze trends and identify potential buy or sell signals based on historical price data.
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What getSMA does on Financial Modeling Prep (FMP) Server
AI agents call getSMA to retrieve information from Financial Modeling Prep (FMP) Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
to | string | — | End date (YYYY-MM-DD) |
from | string | — | Start date (YYYY-MM-DD) |
symbol | string | — | Stock symbol |
timeframe | string | — | Timeframe (1min, 5min, 15min, 30min, 1hour, 4hour, 1day) |
periodLength | number | — | Period length for the indicator |
Parameters from the server's own tool schema.
Why getSMA is rated Low
getSMA retrieves and computes technical indicators from historical market data. It produces analytical output without side effects, irreversible changes, financial transactions, or external operations. This is a straightforward Read operation that queries market data and returns calculated statistics.
From the tool's definition Tool description states 'Calculate the Simple Moving Average (SMA)' and 'analyze trends and identify potential buy or sell signals based on historical price data' — this is pure data retrieval and analysis with no modifications, deletions, financial…
Attacks that exploit this kind of access
The rule that runs getSMA safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Financial Modeling Prep (FMP) Server , and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For getSMA, this is the rule to start with:
getSMA is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Financial Modeling Prep (FMP) Server , apply this rule, and every getSMA call is checked against it from then on.
Questions about getSMA
Calculate the Simple Moving Average (SMA) for a stock using the FMP SMA API. This tool helps users analyze trends and identify potential buy or sell signals based on historical price data. It is categorised as a Read tool in the Financial Modeling Prep (FMP) Server MCP Server, which means it retrieves data without modifying state.
getSMA accepts 5 parameters: to, from, symbol, timeframe, periodLength. The full parameter table on this page comes from the server's own tool schema.
Register the Financial Modeling Prep (FMP) Server MCP server in PolicyLayer and add a rule for getSMA: 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 (FMP) Server . Nothing to install.
getSMA 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 getSMA 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 getSMA. 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.
getSMA is provided by the Financial Modeling Prep (FMP) Server MCP server (imbenrabi/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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