BinanceDeleteUserDataStream
Close a user data stream by invalidating the listen key.
This record as markdown: /tools/nirholas-binance-mcp/binancedeleteuserdatastream.md
What BinanceDeleteUserDataStream does on Binance MCP Server
AI agents call BinanceDeleteUserDataStream 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 BinanceDeleteUserDataStream is rated Critical
This tool irreversibly invalidates a listen key, which cannot be undone through the same operation. Once invalidated, the stream ceases and the key becomes non-functional. While not a financial transaction itself, in the context of a Binance trading MCP server with 156 trading/wallet tools, invalidating a user's data stream is a destructive action that disrupts trading operations and market data access.
From the tool's definition "Close a user data stream by invalidating the listen key" — this operation permanently terminates an active WebSocket connection and revokes authentication credentials, preventing further data stream access.
Attacks that exploit this kind of access
The rule that runs BinanceDeleteUserDataStream 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 BinanceDeleteUserDataStream, this is the rule to start with:
BinanceDeleteUserDataStream 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 BinanceDeleteUserDataStream call is checked against it from then on.
Questions about BinanceDeleteUserDataStream
Close a user data stream by invalidating the listen key. 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 BinanceDeleteUserDataStream: 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.
BinanceDeleteUserDataStream 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 BinanceDeleteUserDataStream 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 BinanceDeleteUserDataStream. 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.
BinanceDeleteUserDataStream 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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