Search the mcpcatalogs.com directory by free-text query, optionally narrowing to a category. Returns ranked active MCP servers with summaries and links.
AI agents call search_mcp_servers to retrieve information from Mcpcatalogs without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only query against a public directory of MCP servers. It retrieves information (search results) without creating, modifying, deleting, or executing anything. The operation has no side effects and poses minimal security risk if misused by an AI agent—worst case, it returns irrelevant search results.
From the tool's definition Tool description states it 'Search[es] the mcpcatalogs.com directory by free-text query' and 'Returns ranked active MCP servers with summaries and links'. The verb 'search' and 'returns' indicate data retrieval with no modification or side effects.
Attacks that exploit this kind of access
Search the mcpcatalogs.com directory by free-text query, optionally narrowing to a category. Returns ranked active MCP servers with summaries and links. It is categorised as a Read tool in the Mcpcatalogs MCP Server, which means it retrieves data without modifying state.
Register the Mcpcatalogs MCP server in PolicyLayer and add a rule for search_mcp_servers: 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 Mcpcatalogs. Nothing to install.
search_mcp_servers 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_mcp_servers 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_mcp_servers. 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_mcp_servers is provided by the Mcpcatalogs MCP server (mcpcatalogs/mcpcatalogs). 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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