get_balance · Trade MCP Server MCP: Risk & Policy

WHAT IT DOES

What get_balance does on Trade MCP Server

AI agents call get_balance to retrieve information from Trade MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why get_balance needs a policy

This tool queries and retrieves sensitive financial account balance information from Binance without making any changes to the account or executing transactions. It is a read-only operation.

From the tool's definition Tool name 'get_balance' and description '查询 Binance 账户余额' (Query Binance account balance) indicate retrieval of account financial data with no modification or execution of trades.

Attacks that exploit this kind of access

Questions about get_balance

What does the get_balance tool do? +

查询 Binance 账户余额. It is categorised as a Read tool in the Trade MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_balance? +

Register the Trade MCP Server MCP server in PolicyLayer and add a rule for get_balance: 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 Trade MCP Server. Nothing to install.

What risk level is get_balance? +

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

Can I rate-limit get_balance? +

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

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

get_balance is provided by the Trade MCP Server MCP server (woodsgao/trade-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.