Get current prices for all tokens on ALEX
AI agents call alex_get_all_token_prices to retrieve information from Stacks AI 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 price information from the ALEX DeFi protocol without modifying, executing code, deleting data, or moving funds. It is a pure read operation with no state-changing effects. The low severity reflects that price data retrieval poses minimal risk even if accessed by an AI agent—the information is public and read-only.
From the tool's definition Tool name 'alex_get_all_token_prices' and description 'Get current prices for all tokens on ALEX' indicate data retrieval with no side effects. This is a query operation that fetches market data.
Attacks that exploit this kind of access
Get current prices for all tokens on ALEX. It is categorised as a Read tool in the Stacks AI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Stacks AI MCP Server MCP server in PolicyLayer and add a rule for alex_get_all_token_prices: 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 Stacks AI MCP Server. Nothing to install.
alex_get_all_token_prices 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 alex_get_all_token_prices 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 alex_get_all_token_prices. 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.
alex_get_all_token_prices is provided by the Stacks AI MCP Server MCP server (stack-ai-mcp/stacks-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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