Low Risk

get_mark_price_kline

Get mark price candlestick data for derivatives trading. Mark price is used for liquidation calculations and PnL. Available for linear and inverse perpetual contracts only.

How to control get_mark_price_kline ↓

What get_mark_price_kline does on Bybit MCP Server

AI agents call get_mark_price_kline 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 get_mark_price_kline needs a policy

This is a read-only query function that retrieves historical mark price data used for analysis. It has no side effects, does not execute trades or commands, does not modify any data, and poses minimal risk even if misused by an AI agent—the worst outcome would be retrieving irrelevant historical data.

From the tool's definition Tool retrieves candlestick data (get_mark_price_kline) without modifying state. The description explicitly indicates data retrieval: 'Get mark price candlestick data for derivatives trading' with no indication of write, execute, or destructive operations.

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

How to control get_mark_price_kline

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 get_mark_price_kline:

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

get_mark_price_kline 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 get_mark_price_kline

What does the get_mark_price_kline tool do? +

Get mark price candlestick data for derivatives trading. Mark price is used for liquidation calculations and PnL. Available for linear and inverse perpetual contracts only. 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 get_mark_price_kline? +

Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for get_mark_price_kline: 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 get_mark_price_kline? +

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

Can I rate-limit get_mark_price_kline? +

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

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

get_mark_price_kline is provided by the Bybit MCP Server MCP server (bcusack/bybit-py-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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36 Bybit MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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