List all MCP server categories available on mcpmarket.com.
AI agents call mcpmarket_categories to retrieve information from Mcp Mcpmarket without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns categorical metadata from mcpmarket.com. It performs a simple read operation analogous to fetching a list or enumeration of available categories. There is no data modification, code execution, deletion, or financial impact. The blast radius of misuse is minimal—an agent could only enumerate categories, which is non-sensitive discovery information.
From the tool's definition Tool name 'mcpmarket_categories' and description 'List all MCP server categories available on mcpmarket.com' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
List all MCP server categories available on mcpmarket.com. It is categorised as a Read tool in the Mcp Mcpmarket MCP Server, which means it retrieves data without modifying state.
Register the Mcp Mcpmarket MCP server in PolicyLayer and add a rule for mcpmarket_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 Mcpmarket. Nothing to install.
mcpmarket_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 mcpmarket_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 mcpmarket_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.
mcpmarket_categories is provided by the Mcp Mcpmarket MCP server (xzeroone/mcp-mcpmarket). 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.
Teams ship this data inside their own products. See what a licence covers →