Search for FRED series by keywords. Returns matching series with IDs and descriptions.
AI agents call search_series to retrieve information from FRED 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 and queries public economic time series data from the Federal Reserve database without creating, modifying, deleting, or executing operations. It has no side effects and poses minimal security risk—misuse would only result in retrieving data already intended to be publicly accessible.
From the tool's definition Tool description states it 'Search for FRED series by keywords. Returns matching series with IDs and descriptions.' The verb 'search' and 'returns' indicate data retrieval with no modification.
Attacks that exploit this kind of access
Search for FRED series by keywords. Returns matching series with IDs and descriptions. It is categorised as a Read tool in the FRED MCP Server MCP Server, which means it retrieves data without modifying state.
Register the FRED MCP Server MCP server in PolicyLayer and add a rule for search_series: 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 FRED MCP Server. Nothing to install.
search_series 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 search_series 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 search_series. 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.
search_series is provided by the FRED MCP Server MCP server (shawndrake2/mcp-fred). 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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