Get the current blacklist of trading pairs.
AI agents call fetch_blacklist to retrieve information from Freqtrade-MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only queries and returns the existing blacklist configuration. It performs no modifications, deletions, or executions. While the context involves cryptocurrency trading (which could have financial implications if tools were misused), this specific tool is purely informational and read-only. Misuse would have minimal impact as it merely exposes existing data.
From the tool's definition Tool name is 'fetch_blacklist' and description states 'Get the current blacklist of trading pairs' — both indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Get the current blacklist of trading pairs. It is categorised as a Read tool in the Freqtrade-MCP MCP Server, which means it retrieves data without modifying state.
Register the Freqtrade- MCP server in PolicyLayer and add a rule for fetch_blacklist: 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 Freqtrade-MCP. Nothing to install.
fetch_blacklist 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 fetch_blacklist 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 fetch_blacklist. 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.
fetch_blacklist is provided by the Freqtrade- MCP server (worlddebugger/freqtrade-mcp). 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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