BinanceOptionsDeleteListenKey
Close/delete an options listen key. This will terminate the user data stream connection.
This record as markdown: /tools/nirholas-binance-mcp/binanceoptionsdeletelistenkey.md
What BinanceOptionsDeleteListenKey does on Binance MCP Server
AI agents call BinanceOptionsDeleteListenKey to permanently remove resources in Binance MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why BinanceOptionsDeleteListenKey is rated Critical
The tool permanently closes/deletes a listen key and terminates the associated user data stream connection. This is irreversible — once the listen key is deleted and the stream is terminated, any active listeners relying on that connection are dropped. While it doesn't destroy financial assets, it irreversibly terminates a streaming session, fitting the Destructive category.
From the tool's definition Close/delete an options listen key. This will terminate the user data stream connection.
Attacks that exploit this kind of access
The rule that runs BinanceOptionsDeleteListenKey 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 BinanceOptionsDeleteListenKey, this is the rule to start with:
BinanceOptionsDeleteListenKey is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Binance MCP Server, apply this rule, and every BinanceOptionsDeleteListenKey call is checked against it from then on.
Questions about BinanceOptionsDeleteListenKey
Close/delete an options listen key. This will terminate the user data stream connection. It is categorised as a Destructive tool in the Binance MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Binance MCP Server MCP server in PolicyLayer and add a rule for BinanceOptionsDeleteListenKey: 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.
BinanceOptionsDeleteListenKey is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the BinanceOptionsDeleteListenKey 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 BinanceOptionsDeleteListenKey. 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.
BinanceOptionsDeleteListenKey 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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