Low Risk

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- Co...

How to control getHistoricalVolatility ↓

What getHistoricalVolatility does on Bybit MCP Server

AI agents call getHistoricalVolatility to retrieve information from Bybit MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why getHistoricalVolatility needs a policy

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 definition Tool description states "Query historical implied volatility data" and "Retrieve...volatility data for backtesting or analysis".

Documented attack patterns abuse exactly the kind of access getHistoricalVolatility gives an agent:

How to control getHistoricalVolatility

PolicyLayer is an MCP gateway — it sits between your AI agents and Bybit MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for getHistoricalVolatility:

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

getHistoricalVolatility is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Bybit MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about getHistoricalVolatility

What does the getHistoricalVolatility tool do? +

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. It is categorised as a Read tool in the Bybit MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on getHistoricalVolatility? +

Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for getHistoricalVolatility: 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 Bybit MCP Server. Nothing to install.

What risk level is getHistoricalVolatility? +

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

Can I rate-limit getHistoricalVolatility? +

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

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

getHistoricalVolatility is provided by the Bybit MCP Server MCP server (bybit-exchange/trading-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Bybit MCP Server tool call.

Start from Bybit MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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326 Bybit MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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