Low Risk

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).

How to control binance_us_order_book ↓

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 — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why binance_us_order_book needs a policy

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.

Documented attack patterns abuse exactly the kind of access binance_us_order_book gives an agent:

How to control binance_us_order_book

PolicyLayer is an MCP gateway — it sits between your AI agents and Binance US MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for binance_us_order_book:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "binance_us_order_book": {}
  }
}

binance_us_order_book is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Binance US MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
CAP THIS TOOL →

Free to start. No card required.

Related tools and policies

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Questions about binance_us_order_book

What does the binance_us_order_book tool do? +

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.

How do I enforce a policy on binance_us_order_book? +

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.

What risk level is binance_us_order_book? +

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

Can I rate-limit binance_us_order_book? +

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.

How do I block binance_us_order_book completely? +

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.

What MCP server provides binance_us_order_book? +

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.

Enforce policy on every Binance US MCP Server tool call.

Start from Binance US MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

93 Binance US MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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