qd_get_net_flow

THE RISK

Low Risk

Why qd_get_net_flow needs a policy

This is a Read operation—it retrieves financial market data without modifying state. Severity is medium rather than low because financial market data (especially real-time derivatives data) could be misused to inform unauthorized trading decisions or manipulate markets if combined with execution capabilities, but this tool alone only reads data.

From the tool's definition Tool name 'qd_get_net_flow' suggests retrieval of market data (net flow metrics). Server description indicates tools provide 'access to real-time and historical SPX 0DTE options market data' for 'analysis of market indicators'.

Documented attack patterns abuse exactly the kind of access qd_get_net_flow gives an agent:

POLICY

How to control qd_get_net_flow

PolicyLayer is an MCP gateway — it sits between your AI agents and QuantData MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for qd_get_net_flow:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "qd_get_net_flow": {}
  }
}

qd_get_net_flow is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register QuantData MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about qd_get_net_flow

What does the qd_get_net_flow tool do? +

qd_get_net_flow. It is categorised as a Read tool in the QuantData MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on qd_get_net_flow? +

Register the QuantData MCP Server MCP server in PolicyLayer and add a rule for qd_get_net_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 QuantData MCP Server. Nothing to install.

What risk level is qd_get_net_flow? +

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

Can I rate-limit qd_get_net_flow? +

Yes. Add a rate_limit block to the qd_get_net_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.

How do I block qd_get_net_flow completely? +

Set action: deny in the PolicyLayer policy for qd_get_net_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.

What MCP server provides qd_get_net_flow? +

qd_get_net_flow is provided by the QuantData MCP Server MCP server (zzulanas/quantdata-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every QuantData MCP Server tool call.

Start from QuantData MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →