binance_us_order_book
Get order book depth (bids and asks) for a trading pair on Binance.US. Returns price levels with quantities. Weight varies based on limit (1-100: weight 1, 101-500: weight 5, 501-1000: weight 10, 1001-5000: weight 50).
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What binance_us_order_book does on Binance US MCP Server
AI agents call binance_us_order_book to retrieve information from Binance US MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why binance_us_order_book is rated Low
This tool only queries and returns market data from the exchange without creating, modifying, deleting, or executing any financial transactions. While it provides data used in trading decisions, the tool itself performs no side effects. It is a read-only data retrieval operation on publicly available market information.
From the tool's definition Tool retrieves order book depth data (bids and asks) for a trading pair. The description explicitly states it 'Returns price levels with quantities' with no mention of placing orders, modifying data, or executing trades.
Attacks that exploit this kind of access
The rule that runs binance_us_order_book safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Binance US MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For binance_us_order_book, this is the rule to start with:
binance_us_order_book is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Binance US MCP Server, apply this rule, and every binance_us_order_book call is checked against it from then on.
Questions about binance_us_order_book
Get order book depth (bids and asks) for a trading pair on Binance.US. Returns price levels with quantities. Weight varies based on limit (1-100: weight 1, 101-500: weight 5, 501-1000: weight 10, 1001-5000: weight 50). It is categorised as a Read tool in the Binance US MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Binance US MCP Server MCP server in PolicyLayer and add a rule for binance_us_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 Binance US MCP Server. Nothing to install.
binance_us_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 binance_us_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 binance_us_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.
binance_us_order_book is provided by the Binance US MCP Server MCP server (nirholas/binance-us-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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