AI agents call get_klines to retrieve information from Mcp Binance Futures without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Klines (candlestick data) are historical market price data. Retrieving them has no side effects, does not execute trades, and does not modify state. Even though the server enables financial operations, this specific tool only queries market information. Confidence is moderate due to empty description, but the name and context strongly indicate a Read operation.
From the tool's definition Tool name 'get_klines' indicates retrieval of candlestick/OHLC market data (standard Binance terminology). No description provided, but naming and sibling tools (market data queries like get_order_book, get_leverage_brackets) suggest read-only behavior.
Documented attack patterns abuse exactly the kind of access get_klines gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Binance Futures, and nothing reaches the server without passing your rules. This is the rule we recommend for get_klines:
{
"version": "1",
"default": "deny",
"tools": {
"get_klines": {}
}
}get_klines is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_klines. It is categorised as a Read tool in the Mcp Binance Futures MCP Server, which means it retrieves data without modifying state.
Register the Mcp Binance Futures MCP server in PolicyLayer and add a rule for get_klines: 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 Mcp Binance Futures. Nothing to install.
get_klines 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_klines 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_klines. 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_klines is provided by the Mcp Binance Futures MCP server (muvon/mcp-binance-futures). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Mcp Binance Futures, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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23 Mcp Binance Futures tools catalogued and risk-classified — across an index of 43,000+ MCP servers.