# getHistoricalMarketCap

Access historical market capitalization data for a company using the FMP Historical Market Capitalization API. This API helps track the changes in market value over time, enabling long-term assessments of a company's growth or decline.

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

## Facts

- Tool: `getHistoricalMarketCap`
- 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: 4
- 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) |
| `limit` | number | no | Limit on number of results (default: 100, max: 5000) |
| `symbol` | string | no | Stock symbol |

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": "getHistoricalMarketCap",
    "arguments": {}
  }
}
```

## Why getHistoricalMarketCap is rated Low

This tool retrieves historical financial data (market capitalization) for analysis purposes. It performs a read-only query against the FMP API to access existing data. There are no side effects, no data modification, no code execution, and no financial transactions. The low severity reflects minimal risk even if misused by an agent, as it only returns informational data about past market values.

From the tool's own definition: "Tool description states 'Access historical market capitalization data' and 'track the changes in market value over time' — these are retrieval and query operations with no modification or side effects."

## Use case

AI agents call getHistoricalMarketCap 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": {
    "getHistoricalMarketCap": {}
  }
}
```

## 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