BinanceFuturesCloseListenKey

Close a USD-M Futures user data stream listen key. This invalidates the listen key and closes the associated WebSocket stream.

SERVERBinance MCP Server SOURCEnirholas/binance-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/nirholas-binance-mcp/binancefuturescloselistenkey.md

WHAT IT DOES

What BinanceFuturesCloseListenKey does on Binance MCP Server

AI agents use BinanceFuturesCloseListenKey to create or update resources in Binance MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Binance MCP Server environment.

RISK

Why BinanceFuturesCloseListenKey is rated Medium

An AI agent can call BinanceFuturesCloseListenKey faster than any human can review: one bad instruction and it creates or modifies resources in Binance MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs BinanceFuturesCloseListenKey safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Binance MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For BinanceFuturesCloseListenKey, this is the rule to start with:

BinanceFuturesCloseListenKey Rate-limited

BinanceFuturesCloseListenKey stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "BinanceFuturesCloseListenKey": {
      "limits": [
        {
          "counter": "binancefuturescloselistenkey_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Binance MCP Server, apply this rule, and every BinanceFuturesCloseListenKey call is checked against it from then on.

FAQ

Questions about BinanceFuturesCloseListenKey

What does the BinanceFuturesCloseListenKey tool do? +

Close a USD-M Futures user data stream listen key. This invalidates the listen key and closes the associated WebSocket stream. It is categorised as a Write tool in the Binance MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on BinanceFuturesCloseListenKey? +

Register the Binance MCP Server MCP server in PolicyLayer and add a rule for BinanceFuturesCloseListenKey: 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 MCP Server. Nothing to install.

What risk level is BinanceFuturesCloseListenKey? +

BinanceFuturesCloseListenKey is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit BinanceFuturesCloseListenKey? +

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

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

BinanceFuturesCloseListenKey is provided by the Binance MCP Server MCP server (nirholas/binance-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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