AI agents call get_balances to retrieve information from MCP Server for Binance Spot Trading without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves account balance data without modifying, executing external operations, or affecting financial state. It has read-only semantics consistent with monitoring account holdings. Severity is low because reading balances has minimal blast radius—an AI agent misusing this tool could only leak financial information visibility, not cause financial harm, deletion, or unintended transactions.
From the tool's definition Tool name is 'get_balances' with no description. The name indicates a retrieval operation that queries account balance information.
Documented attack patterns abuse exactly the kind of access get_balances gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Server for Binance Spot Trading, and nothing reaches the server without passing your rules. This is the rule we recommend for get_balances:
{
"version": "1",
"default": "deny",
"tools": {
"get_balances": {}
}
}get_balances is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_balances. It is categorised as a Read tool in the MCP Server for Binance Spot Trading MCP Server, which means it retrieves data without modifying state.
Register the MCP Server for Binance Spot Trading MCP server in PolicyLayer and add a rule for get_balances: 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 MCP Server for Binance Spot Trading. Nothing to install.
get_balances 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 get_balances 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 get_balances. 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.
get_balances is provided by the MCP Server for Binance Spot Trading MCP server (kydlikebtc/mcp-server-bn). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCP Server for Binance Spot Trading, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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12 MCP Server for Binance Spot Trading tools catalogued and risk-classified — across an index of 43,000+ MCP servers.