Browse the FRED category tree to DISCOVER economic series. Pass categoryId for that category (name+parent) + its child categories + its most-popular series (id/title/units/frequency); omit (or 0) for the 8 top-level categories. Walk down via child ids, then fetch with econ.fred. Free, public-domain.
AI agents call econ.fred-categories to retrieve information from Mcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries hierarchical economic data from FRED (Federal Reserve Economic Data). It performs read-only discovery and browsing operations—no data creation, modification, deletion, or code execution. The tool explicitly notes it is 'free, public-domain' and only returns metadata (ids, titles, units, frequency). It is a pure information retrieval interface with no side effects.
From the tool's definition Tool 'Browse the FRED category tree to DISCOVER economic series' and 'Pass categoryId for that category (name+parent) + its child categories + its most-popular series (id/title/units/frequency)' indicates retrieval and navigation of publicly available data…
Attacks that exploit this kind of access
Browse the FRED category tree to DISCOVER economic series. Pass categoryId for that category (name+parent) + its child categories + its most-popular series (id/title/units/frequency); omit (or 0) for the 8 top-level categories. Walk down via child ids, then fetch with econ.fred. Free, public-domain. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.
Register the MCP server in PolicyLayer and add a rule for econ.fred-categories: 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. Nothing to install.
econ.fred-categories 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 econ.fred-categories 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 econ.fred-categories. 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.
econ.fred-categories is provided by the MCP server (@2sio/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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