listSubAPIKeysV5

THE RISK

Low Risk

Why listSubAPIKeysV5 needs a policy

While this is fundamentally a Read operation (retrieves data without modification), the high severity reflects that API keys are extremely sensitive credentials. Exposure of sub-account API keys could allow an attacker to compromise multiple trading accounts and execute unauthorized transactions.

From the tool's definition Tool name and description indicate querying/retrieving API keys: 'Query all API keys' with 'pagination support' and 'Use master account' context. This is a read operation that retrieves sensitive authentication credentials.

Documented attack patterns abuse exactly the kind of access listSubAPIKeysV5 gives an agent:

POLICY

How to control listSubAPIKeysV5

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 listSubAPIKeysV5:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "listSubAPIKeysV5": {}
  }
}

listSubAPIKeysV5 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

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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 listSubAPIKeysV5

What does the listSubAPIKeysV5 tool do? +

Query all API keys of a sub-account with pagination support. Use master account. 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 listSubAPIKeysV5? +

Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for listSubAPIKeysV5: 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 listSubAPIKeysV5? +

listSubAPIKeysV5 is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit listSubAPIKeysV5? +

Yes. Add a rate_limit block to the listSubAPIKeysV5 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 listSubAPIKeysV5 completely? +

Set action: deny in the PolicyLayer policy for listSubAPIKeysV5. 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 listSubAPIKeysV5? +

listSubAPIKeysV5 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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