AI agents call get_price to retrieve information from Binance without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves market data (current price) without side effects. It does not create, modify, or delete data, nor does it execute trades or move funds. While the server provides trading functionality (evidenced by sibling tools like place_order, cancel_order), this specific tool is a read-only query operation. Severity is low because exposure of price data carries minimal risk to the agent or system.
From the tool's definition Tool name 'get_price' and description indicate retrieval of current price data for a specified trading pair. No modification, execution, or financial transaction occurs—only data query.
Documented attack patterns abuse exactly the kind of access get_price gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Binance, and nothing reaches the server without passing your rules. This is the rule we recommend for get_price:
{
"version": "1",
"default": "deny",
"tools": {
"get_price": {}
}
}get_price is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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获取指定交易对的当前价格. It is categorised as a Read tool in the Binance MCP Server, which means it retrieves data without modifying state.
Register the Binance MCP server in PolicyLayer and add a rule for get_price: 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 Binance. Nothing to install.
get_price 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_price 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_price. 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_price is provided by the Binance MCP server (binance-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Binance, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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10 Binance tools catalogued and risk-classified — across an index of 43,000+ MCP servers.