# getHistoricalVolatility

Query historical implied volatility data for options with hourly granularity.\nReturns the Bybit-calculated historical volatility index for the specified base coin.\n\nUse this endpoint when you need to:\n- Research historical implied volatility trends for options trading or risk management\n- Compare volatility across different averaging periods (e.g., 7-day vs 30-day)\n- Retrieve up to 2 years of hourly volatility data for backtesting or analysis\n\nSupported Products: Option only\n\n

Agent View of the PolicyLayer registry record for `getHistoricalVolatility`. HTML page: https://policylayer.com/tools/bybit-exchange-trading-mcp/gethistoricalvolatility

## Facts

- Tool: `getHistoricalVolatility`
- Server: Bybit MCP Server (`bybit-exchange/trading-mcp`) — https://policylayer.com/tools/bybit-exchange-trading-mcp.md
- Homepage: https://github.com/bybit-exchange/trading-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

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

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

## Why getHistoricalVolatility is rated Low

getHistoricalVolatility is a purely informational query tool that retrieves historical volatility index data from Bybit. It has no side effects—it does not create, modify, delete, or execute any trading operations. The use cases are explicitly for analysis and research. While this is a financial exchange server, the tool itself only reads data without moving money or committing financial obligations.

From the tool's own definition: "Tool description states 'Query historical implied volatility data' and 'Retrieve...volatility data for backtesting or analysis'."

## Use case

AI agents call getHistoricalVolatility to retrieve information from Bybit MCP Server 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 Bybit MCP Server:

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

## Other tools on Bybit MCP Server (379)

- `batchCancelOrders` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/batchcancelorders.md
- `cancelAllOrders` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelallorders.md
- `cancelAllQuotes` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelallquotes.md
- `cancelAllRfqs` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelallrfqs.md
- `cancelAllSpreadOrders` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelallspreadorders.md
- `cancelOrder` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelorder.md
- `cancelRfq` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelrfq.md
- `cancelSpreadOrder` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelspreadorder.md
- `closeComboBot` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/closecombobot.md
- `closeFGridBot` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/closefgridbot.md
- `closeFMartBot` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/closefmartbot.md
- `removeAd` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/removead.md
- `upgradeToUta` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/upgradetouta.md
- `wsBatchCancelOrders` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/wsbatchcancelorders.md
- `wsCancelOrder` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/wscancelorder.md
- `acceptNonLpQuote` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/acceptnonlpquote.md
- `closeGridBot` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/closegridbot.md
- `confirmNewRiskLimit` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/confirmnewrisklimit.md
- `createComboBot` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/createcombobot.md
- `createTwapStrategy` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/createtwapstrategy.md
- `movePosition` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/moveposition.md
- `resetMmp` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/resetmmp.md
- `setTradingStop` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/settradingstop.md
- `stopStrategy` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/stopstrategy.md
- `stopSubscription` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/stopsubscription.md
- `wsAmendOrder` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/wsamendorder.md
- `wsBatchAmendOrders` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/wsbatchamendorders.md
- `accountBorrow` — Financial — https://policylayer.com/tools/bybit-exchange-trading-mcp/accountborrow.md
- `accountFixedBorrow` — Financial — https://policylayer.com/tools/bybit-exchange-trading-mcp/accountfixedborrow.md
- `accountNoConvertRepay` — Financial — https://policylayer.com/tools/bybit-exchange-trading-mcp/accountnoconvertrepay.md
- …and 349 more: https://policylayer.com/tools/bybit-exchange-trading-mcp.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`

---

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