Fetches daily time series data for a cryptocurrency.
AI agents call crypto_daily to retrieve information from MCP Avantage without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical cryptocurrency price data without creating, modifying, deleting, or executing any transactions. It is a pure data query operation that returns time-series information for analysis purposes only. No side effects, financial transactions, or destructive operations occur.
From the tool's definition Tool name 'crypto_daily' and description 'Fetches daily time series data for a cryptocurrency' indicate a retrieval operation with no modification or execution of external commands.
Attacks that exploit this kind of access
Fetches daily time series data for a cryptocurrency. It is categorised as a Read tool in the MCP Avantage MCP Server, which means it retrieves data without modifying state.
Register the MCP Avantage MCP server in PolicyLayer and add a rule for crypto_daily: 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 MCP Avantage. Nothing to install.
crypto_daily 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 crypto_daily 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 crypto_daily. 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.
crypto_daily is provided by the MCP Avantage MCP server (missionsquad/mcp-avantage). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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