AI agents call get_orderbook 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 order book depth data from Binance, which is a read-only operation. It queries existing market information without creating, modifying, deleting, or executing any trades. Even in the context of a trading integration server, this specific tool poses minimal risk as it only provides market visibility. The severity is low because misuse would only expose market data already publicly available.
From the tool's definition Tool name is 'get_orderbook' and description translates to 'Get order book depth data' — a query operation that retrieves market data without modification or side effects.
Documented attack patterns abuse exactly the kind of access get_orderbook 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_orderbook:
{
"version": "1",
"default": "deny",
"tools": {
"get_orderbook": {}
}
}get_orderbook is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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获取订单簿深度数据. 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_orderbook: 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_orderbook 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_orderbook 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_orderbook. 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_orderbook 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.