get_24hr_ticker
AI agents call get_24hr_ticker to retrieve information from Binance Cryptocurrency MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves market data (24-hour ticker statistics) from Binance without creating, modifying, executing, or deleting anything. It is a pure read operation with no side effects. The blast radius of misuse is minimal—an AI agent can only query historical or current market information, not execute trades or modify data.
From the tool's definition Tool name 'get_24hr_ticker' and context from sibling tools (get_price, get_avg_price, get_klines, get_order_book) indicate data retrieval only.
Attacks that exploit this kind of access
get_24hr_ticker. It is categorised as a Read tool in the Binance Cryptocurrency MCP MCP Server, which means it retrieves data without modifying state.
Register the Binance Cryptocurrency MCP server in PolicyLayer and add a rule for get_24hr_ticker: 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 Cryptocurrency MCP. Nothing to install.
get_24hr_ticker 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_24hr_ticker 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_24hr_ticker. 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_24hr_ticker is provided by the Binance Cryptocurrency MCP server (jianchundev/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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