Create a new COIN-M Futures user data stream listen key. The listen key is valid for 60 minutes and can be used to receive account updates via WebSocket.
AI agents use BinanceDeliveryCreateListenKey to create or update resources in BNB Chain MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your BNB Chain MCP environment.
This tool creates a new listen key resource on Binance's COIN-M Futures API. It is a Write operation as it generates/creates a new session token/key. While it doesn't move funds, a misused listen key could expose account data streams. No irreversible destruction or financial transactions are directly performed.
From the tool's definition Create a new COIN-M Futures user data stream listen key
Documented attack patterns abuse exactly the kind of access BinanceDeliveryCreateListenKey gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and BNB Chain MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for BinanceDeliveryCreateListenKey:
{
"version": "1",
"default": "deny",
"tools": {
"BinanceDeliveryCreateListenKey": {
"limits": [
{
"counter": "binancedeliverycreatelistenkey_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}BinanceDeliveryCreateListenKey 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.
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Create a new COIN-M Futures user data stream listen key. The listen key is valid for 60 minutes and can be used to receive account updates via WebSocket. It is categorised as a Write tool in the BNB Chain MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the BNB Chain MCP server in PolicyLayer and add a rule for BinanceDeliveryCreateListenKey: 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 BNB Chain MCP. Nothing to install.
BinanceDeliveryCreateListenKey is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the BinanceDeliveryCreateListenKey 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 BinanceDeliveryCreateListenKey. 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.
BinanceDeliveryCreateListenKey is provided by the BNB Chain MCP server (nirholas/bnbchain-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 1240 BNB Chain MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
1240 BNB Chain MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.