AI agents call get_spot_klines to retrieve information from Asterdex without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves candlestick (OHLCV) data for spot markets, which is a read-only query operation. It has no side effects, does not execute orders, does not modify data, and does not commit financial transactions. While the server context involves trading, this specific tool merely fetches historical price data for analysis purposes.
From the tool's definition Tool name 'get_spot_klines' and description 'Get spot candlestick (kline) data' indicate retrieval of historical market data without modification or execution of trades.
Attacks that exploit this kind of access
Get spot candlestick (kline) data. It is categorised as a Read tool in the Asterdex MCP Server, which means it retrieves data without modifying state.
Register the Asterdex MCP server in PolicyLayer and add a rule for get_spot_klines: 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 Asterdex. Nothing to install.
get_spot_klines 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_spot_klines 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_spot_klines. 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_spot_klines is provided by the Asterdex MCP server (tyranosurasmax/asterdex-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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