AI agents call yuandian_list_apis to retrieve information from Yuandian without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
keyword | string | — | 按接口名称、routeKey 或描述做本地关键词过滤 |
categoryId | number | — | 可选分类 ID：法律法规=7，案例文书=6，企业信息=9 |
Parameters from the server's own tool schema.
This tool performs a pure read operation—it lists/enumerates APIs without modifying, executing, or deleting anything. The description explicitly states it 'lists' (列出) interfaces discovered at startup, which is a read-only query operation.
From the tool's definition Tool name 'yuandian_list_apis' and description '列出当前 MCP Server 启动时从元典开放平台目录动态发现的接口' (List the interfaces dynamically discovered from the YuanDian open platform directory when the MCP Server starts) indicates it retrieves or enumerates available API endpoints…
Attacks that exploit this kind of access
列出当前 MCP Server 启动时从元典开放平台目录动态发现的接口。. It is categorised as a Read tool in the Yuandian MCP Server, which means it retrieves data without modifying state.
yuandian_list_apis accepts 2 parameters: keyword, categoryId. The full parameter table on this page comes from the server's own tool schema.
Register the Yuandian MCP server in PolicyLayer and add a rule for yuandian_list_apis: 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 Yuandian. Nothing to install.
yuandian_list_apis 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 yuandian_list_apis 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 yuandian_list_apis. 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.
yuandian_list_apis is provided by the Yuandian MCP server (yuandian-mcp-server). 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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