AI agents call margin to retrieve information from Xueqiu MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves financial market data (margin/financing information) from the Xueqiu API. This is a read-only query operation that fetches existing data without side effects, altering data, executing code, deleting records, or moving funds. The blast radius of misuse is minimal—an AI agent querying this tool can only access stock margin data, which poses no direct security, operational, or financial risk.
From the tool's definition Tool name 'margin' and description '获取融资融券数据' (get margin trading/financing and securities lending data) indicates a data retrieval operation with no modification or execution capabilities.
Documented attack patterns abuse exactly the kind of access margin gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Xueqiu MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for margin:
{
"version": "1",
"default": "deny",
"tools": {
"margin": {}
}
}margin is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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获取融资融券数据. It is categorised as a Read tool in the Xueqiu MCP MCP Server, which means it retrieves data without modifying state.
Register the Xueqiu MCP server in PolicyLayer and add a rule for margin: 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 Xueqiu MCP. Nothing to install.
margin 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 margin 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 margin. 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.
margin is provided by the Xueqiu MCP server (liqiongyu/xueqiu_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Xueqiu MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
45 Xueqiu MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.