Fetch a specific pie by ID
AI agents call fetch_pie to retrieve information from Trading 212 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 portfolio composition data (a 'pie' is a Trading 212 portfolio grouping construct). It performs a data query with no ability to modify, delete, or execute trades. Even in a financial context, read-only data retrieval carries minimal risk compared to write, execute, or destructive operations. The tool cannot move money, execute trades, or cause irreversible changes.
From the tool's definition Tool name 'fetch_pie' and description 'Fetch a specific pie by ID' indicate a retrieval operation. 'Fetch' is a read operation that queries data without modification or side effects.
Attacks that exploit this kind of access
Fetch a specific pie by ID. It is categorised as a Read tool in the Trading 212 MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Trading 212 MCP Server MCP server in PolicyLayer and add a rule for fetch_pie: 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 Trading 212 MCP Server. Nothing to install.
fetch_pie 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_pie 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_pie. 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_pie is provided by the Trading 212 MCP Server MCP server (razeevascx/212mcp). 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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