# getDEMA

Calculate the Double Exponential Moving Average (DEMA) for a stock using the FMP DEMA API. This tool helps users analyze trends and identify potential buy or sell signals based on historical price data.

Agent View of the PolicyLayer registry record for `getDEMA`. HTML page: https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getdema

## Facts

- Tool: `getDEMA`
- Server: Financial Modeling Prep (`cfocoder/financial-modeling-prep-mcp-server`) — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server.md
- Homepage: https://github.com/cfocoder/financial-modeling-prep-mcp-server
- Risk category: Read (Low risk)
- Registry record: grade D, identity unverified
- Server rate-limited: no
- Parameters: 5
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `to` | string | no | End date (YYYY-MM-DD) |
| `from` | string | no | Start date (YYYY-MM-DD) |
| `symbol` | string | no | Stock symbol |
| `timeframe` | string | no | Timeframe (1min, 5min, 15min, 30min, 1hour, 4hour, 1day) |
| `periodLength` | number | no | Period length for the indicator |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "getDEMA",
    "arguments": {}
  }
}
```

## Why getDEMA is rated Low

This is a technical indicator calculation tool that processes historical market data to generate analytical metrics. It retrieves and computes data without side effects—no data is created, modified, deleted, or executed. The output is purely informational for analysis purposes. This clearly falls under the Read category (retrieve/query data with no side effects).

From the tool's own definition: "Tool calculates and retrieves DEMA (Double Exponential Moving Average) based on historical price data. The description states it 'helps users analyze trends' which is analytical retrieval."

## Use case

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

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Financial Modeling Prep:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "getDEMA": {}
  }
}
```

## Other tools on Financial Modeling Prep (252)

- `calculateCustomDCF` — Execute — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/calculatecustomdcf.md
- `calculateCustomLeveredDCF` — Execute — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/calculatecustomlevereddcf.md
- `getAcquisitionOwnership` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getacquisitionownership.md
- `getActivelyTradingList` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getactivelytradinglist.md
- `getADX` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getadx.md
- `getAftermarketQuote` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getaftermarketquote.md
- `getAftermarketTrade` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getaftermarkettrade.md
- `getAllExchangeMarketHours` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getallexchangemarkethours.md
- `getAllIndexQuotes` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getallindexquotes.md
- `getAllIndustryClassification` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getallindustryclassification.md
- `getAllShareFloat` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getallsharefloat.md
- `getAnalystEstimates` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getanalystestimates.md
- `getAvailableCountries` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getavailablecountries.md
- `getAvailableExchanges` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getavailableexchanges.md
- `getAvailableIndustries` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getavailableindustries.md
- `getAvailableSectors` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getavailablesectors.md
- `getAvailableTranscriptSymbols` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getavailabletranscriptsymbols.md
- `getBalanceSheetGrowthBulk` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbalancesheetgrowthbulk.md
- `getBalanceSheetStatement` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbalancesheetstatement.md
- `getBalanceSheetStatementAsReported` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbalancesheetstatementasreported.md
- `getBalanceSheetStatementGrowth` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbalancesheetstatementgrowth.md
- `getBalanceSheetStatementsBulk` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbalancesheetstatementsbulk.md
- `getBalanceSheetStatementTTM` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbalancesheetstatementttm.md
- `getBatchAftermarketQuote` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbatchaftermarketquote.md
- `getBatchAftermarketTrade` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbatchaftermarkettrade.md
- `getBatchMarketCap` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbatchmarketcap.md
- `getBatchQuotes` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbatchquotes.md
- `getBatchQuotesShort` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbatchquotesshort.md
- `getBiggestGainers` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbiggestgainers.md
- `getBiggestLosers` — Read — https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server/getbiggestlosers.md
- …and 222 more: https://policylayer.com/tools/cfocoder-financial-modeling-prep-mcp-server.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=cfocoder-financial-modeling-prep-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/cfocoder-financial-modeling-prep-mcp-server