Query deposit address for a sub-account. Requires master UID API key only.\n- Custodial sub-account addresses are unavailable\n- Validates parent-child relationship between master and sub accounts\n- Sub-accounts bound to Copper custody are not allowed\n- UAE coin restrictions apply
AI agents call querySubMemberDepositAddress 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.
This tool retrieves deposit address information for cryptocurrency sub-accounts. It performs no write operations, executes no external code, deletes nothing, and moves no funds. While it requires master UID API key and involves a cryptocurrency exchange, the operation itself is a straightforward data retrieval with read-only side effects (validation checks).
From the tool's definition Tool name includes 'query' and description states it 'Query deposit address for a sub-account' — purely retrieves account address information with no modifications or irreversible actions.
Documented attack patterns abuse exactly the kind of access querySubMemberDepositAddress gives an agent:
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 querySubMemberDepositAddress:
{
"version": "1",
"default": "deny",
"tools": {
"querySubMemberDepositAddress": {}
}
}querySubMemberDepositAddress is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Query deposit address for a sub-account. Requires master UID API key only.\n- Custodial sub-account addresses are unavailable\n- Validates parent-child relationship between master and sub accounts\n- Sub-accounts bound to Copper custody are not allowed\n- UAE coin restrictions apply. It is categorised as a Read tool in the Bybit MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for querySubMemberDepositAddress: 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.
querySubMemberDepositAddress is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the querySubMemberDepositAddress 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.
Set action: deny in the PolicyLayer policy for querySubMemberDepositAddress. 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.
querySubMemberDepositAddress 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.
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.