Get the total USD value of assets in the master account and all sub-accounts.
AI agents call binance_us_subaccount_summary to retrieve information from BNB Chain MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries account balance information and returns computed summary data. It performs no mutations, deletions, executions, or financial transactions. The action is read-only information retrieval. Severity is low because exposure only reveals financial account balance information without enabling transfers, withdrawals, or other irreversible actions.
From the tool's definition Tool description states 'Get the total USD value of assets in the master account and all sub-accounts' — this is a retrieval operation with no modification or side effects.
Documented attack patterns abuse exactly the kind of access binance_us_subaccount_summary gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and BNB Chain MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for binance_us_subaccount_summary:
{
"version": "1",
"default": "deny",
"tools": {
"binance_us_subaccount_summary": {}
}
}binance_us_subaccount_summary is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the total USD value of assets in the master account and all sub-accounts. It is categorised as a Read tool in the BNB Chain MCP MCP Server, which means it retrieves data without modifying state.
Register the BNB Chain MCP server in PolicyLayer and add a rule for binance_us_subaccount_summary: 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 BNB Chain MCP. Nothing to install.
binance_us_subaccount_summary 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 binance_us_subaccount_summary 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 binance_us_subaccount_summary. 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.
binance_us_subaccount_summary is provided by the BNB Chain MCP server (nirholas/bnbchain-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 1240 BNB Chain MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
1240 BNB Chain MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.