AI agents call capital_flow 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.
This tool retrieves historical or real-time market data (capital flows) with no side effects—it does not modify, delete, execute commands, or perform financial transactions. It is a read-only query operation against financial data, characteristic of market data APIs. The sibling tools (balance, cash_flow, business, etc.) are also data retrieval operations, reinforcing this classification.
From the tool's definition Tool name 'capital_flow' and description '获取当日资金流如流出数据，每分钟数据' (Get intraday capital flow in/out data, minute-level data) indicates retrieval of stock market data without modification.
Documented attack patterns abuse exactly the kind of access capital_flow 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 capital_flow:
{
"version": "1",
"default": "deny",
"tools": {
"capital_flow": {}
}
}capital_flow is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
获取当日资金流如流出数据，每分钟数据. 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 capital_flow: 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.
capital_flow 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 capital_flow 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 capital_flow. 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.
capital_flow 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.