24 hour rolling window price change statistics.
AI agents call ticker_24hr to retrieve information from Aster Finance MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical price statistics without side effects. While it operates on a cryptocurrency trading platform, ticker data is read-only and does not execute trades, modify positions, move funds, or delete data. The low severity reflects that misuse (e.g., feeding stale data to an agent) has limited blast radius compared to order execution or fund transfer tools on the same server.
From the tool's definition Tool returns '24 hour rolling window price change statistics' — purely informational market data retrieval with no state modification, order placement, or financial movement capabilities.
Attacks that exploit this kind of access
24 hour rolling window price change statistics. It is categorised as a Read tool in the Aster Finance MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Aster Finance MCP Server MCP server in PolicyLayer and add a rule for ticker_24hr: 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 Aster Finance MCP Server. Nothing to install.
ticker_24hr 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 ticker_24hr 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 ticker_24hr. 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.
ticker_24hr is provided by the Aster Finance MCP Server MCP server (questflowai/aster-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
ticker_24hr is one line of Aster Finance MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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