yapi-get-interface · YAPI MCP Server MCP: Risk & Policy

WHAT IT DOES

What yapi-get-interface does on YAPI MCP Server

AI agents call yapi-get-interface to retrieve information from YAPI MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why yapi-get-interface needs a policy

This tool retrieves API interface details by ID. It performs a read-only query operation with no capability to modify, delete, or execute anything. The blast radius of misuse is minimal—an attacker could only view interface documentation that may or may not be sensitive, but cannot alter it or trigger operations.

From the tool's definition Tool name is 'yapi-get-interface' and description states '获取接口详情，支持格式：数字ID' which translates to 'Get interface details, supports format: numeric ID'. This is a query/retrieval operation with no side effects.

Attacks that exploit this kind of access

Questions about yapi-get-interface

What does the yapi-get-interface tool do? +

获取接口详情，支持格式：数字ID. It is categorised as a Read tool in the YAPI MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on yapi-get-interface? +

Register the YAPI MCP Server MCP server in PolicyLayer and add a rule for yapi-get-interface: 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 YAPI MCP Server. Nothing to install.

What risk level is yapi-get-interface? +

yapi-get-interface is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit yapi-get-interface? +

Yes. Add a rate_limit block to the yapi-get-interface 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.

How do I block yapi-get-interface completely? +

Set action: deny in the PolicyLayer policy for yapi-get-interface. 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.

What MCP server provides yapi-get-interface? +

yapi-get-interface is provided by the YAPI MCP Server MCP server (w-abel-jia/yapi-interface-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.