binance_us_trade_fee

THE RISK

Low Risk

Why binance_us_trade_fee needs a policy

This tool only retrieves fee rate data based on the user's VIP level. It performs no transactions, does not execute trades, does not modify any state, and does not commit financial obligations. While it operates in a financial context (fee rates for trading), the tool itself is read-only and informational.

From the tool's definition Tool description states 'Get your current maker & taker fee rates' — a pure query operation that retrieves fee information with no side effects or modifications.

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

POLICY

How to control binance_us_trade_fee

PolicyLayer is an MCP gateway — it sits between your AI agents and Sperax Ecosystem Crypto & DeFI MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for binance_us_trade_fee:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "binance_us_trade_fee": {}
  }
}

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

Create a free account and register Sperax Ecosystem Crypto & DeFI MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

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FAQ

Questions about binance_us_trade_fee

What does the binance_us_trade_fee tool do? +

Get your current maker & taker fee rates for spot trading based on your VIP level. BNB fee discount (25% off) is not factored in. It is categorised as a Read tool in the Sperax Ecosystem Crypto & DeFI MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on binance_us_trade_fee? +

Register the Sperax Ecosystem Crypto & DeFI MCP Server MCP server in PolicyLayer and add a rule for binance_us_trade_fee: 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 Sperax Ecosystem Crypto & DeFI MCP Server. Nothing to install.

What risk level is binance_us_trade_fee? +

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

Can I rate-limit binance_us_trade_fee? +

Yes. Add a rate_limit block to the binance_us_trade_fee 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_trade_fee completely? +

Set action: deny in the PolicyLayer policy for binance_us_trade_fee. 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_trade_fee? +

binance_us_trade_fee is provided by the Sperax Ecosystem Crypto & DeFI MCP Server MCP server (sperax/sperax-crypto-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Sperax Ecosystem Crypto & DeFI MCP Server tool call.

Start from Sperax Ecosystem Crypto & DeFI MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →