queryBrokerAccountInfo

Use exchange broker master account to query account information.\n\nRate limit: 10 req per second.\n\nRules:\n- Requires exchange broker master account authentication.

ServerBybit MCP Server
CategoryRead

How to control queryBrokerAccountInfo ↓

WHAT IT DOES

What queryBrokerAccountInfo does on Bybit MCP Server

AI agents call queryBrokerAccountInfo 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.

THE RISK

Low Risk

Why queryBrokerAccountInfo needs a policy

This is a Read operation—it retrieves account information from a broker master account without modifying or executing anything. However, severity is elevated to 'high' rather than 'low' because: (1) the data returned likely includes sensitive financial account details (balances, positions, trading history), and (2) it requires 'exchange broker master account authentication', implying privileged access.

From the tool's definition Tool name is 'queryBrokerAccountInfo' and description states 'query account information'. The verb 'query' combined with 'account information' indicates retrieval/inspection of data with no modification.

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

POLICY

How to control queryBrokerAccountInfo

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 queryBrokerAccountInfo:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "queryBrokerAccountInfo": {}
  }
}

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

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

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EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
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FAQ

Questions about queryBrokerAccountInfo

What does the queryBrokerAccountInfo tool do? +

Use exchange broker master account to query account information.\n\nRate limit: 10 req per second.\n\nRules:\n- Requires exchange broker master account authentication. 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 queryBrokerAccountInfo? +

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

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

Can I rate-limit queryBrokerAccountInfo? +

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

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

queryBrokerAccountInfo 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.