BinanceSimpleEarnAccount

THE RISK

Low Risk

Why BinanceSimpleEarnAccount needs a policy

This tool queries account information from Binance Simple Earn without any side effects. It retrieves existing data (account balances, product amounts, and rewards) but does not create, modify, delete, or execute transactions. While it accesses financial account data, the tool itself performs no financial actions (no transfers, trades, or obligation changes).

From the tool's definition Tool description states 'Get your Simple Earn account overview' and 'Shows total amounts in flexible and locked products, and pending rewards' — purely retrieval operations with no modification, deletion, or execution of code/transactions.

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

POLICY

How to control BinanceSimpleEarnAccount

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 BinanceSimpleEarnAccount:

policy.json

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

BinanceSimpleEarnAccount 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 →

Free to start. No card required.

EXPLORE

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The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about BinanceSimpleEarnAccount

What does the BinanceSimpleEarnAccount tool do? +

Get your Simple Earn account overview. Shows total amounts in flexible and locked products, and pending rewards. 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 BinanceSimpleEarnAccount? +

Register the Sperax Ecosystem Crypto & DeFI MCP Server MCP server in PolicyLayer and add a rule for BinanceSimpleEarnAccount: 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 BinanceSimpleEarnAccount? +

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

Can I rate-limit BinanceSimpleEarnAccount? +

Yes. Add a rate_limit block to the BinanceSimpleEarnAccount 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 BinanceSimpleEarnAccount completely? +

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

BinanceSimpleEarnAccount 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 →