获取交易深度（订单簿）- 查看流动性、深度、买卖盘强度
AI agents call get_order_book to retrieve information from Crypto MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool fetches and displays market data (order book information) from Binance. It does not create, modify, delete, or execute any operations—it only reads and returns existing data for trading analysis purposes. This is consistent with other tools on the server like get_price, get_24h_stats, and get_ohlcv, which are all Read operations.
From the tool's definition Tool description indicates 'get_order_book' retrieves order book data to 'view liquidity, depth, buy/sell strength' (translated from Chinese: '获取交易深度（订单簿）- 查看流动性、深度、买卖盘强度'). This is a query operation with no side effects.
Attacks that exploit this kind of access
获取交易深度（订单簿）- 查看流动性、深度、买卖盘强度. It is categorised as a Read tool in the Crypto MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Crypto MCP Server MCP server in PolicyLayer and add a rule for get_order_book: 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 Crypto MCP Server. Nothing to install.
get_order_book 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_order_book 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_order_book. 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_order_book is provided by the Crypto MCP Server MCP server (williamning316/crypto-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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