inquery-stock-basic-info

THE RISK

Low Risk

Why inquery-stock-basic-info needs a policy

This tool retrieves static product information about domestic stocks without side effects. It is a straightforward read operation that queries existing data. No data is created, modified, deleted, or financial transactions are executed. The low severity reflects minimal blast radius if misused by an AI agent — at worst, it retrieves public market data.

From the tool's definition Tool name contains 'inquery' (query operation) and description states 'Get basic domestic stock product information' — a data retrieval operation with no modification or execution capability.

Documented attack patterns abuse exactly the kind of access inquery-stock-basic-info gives an agent:

POLICY

How to control inquery-stock-basic-info

PolicyLayer is an MCP gateway — it sits between your AI agents and KIS REST API MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for inquery-stock-basic-info:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "inquery-stock-basic-info": {}
  }
}

inquery-stock-basic-info 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 KIS REST API 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 →

Free to start. No card required.

EXPLORE

Related tools and policies

More KIS REST API MCP Server tools

Financial call-kis-api Call any collected KIS REST API by group/api_type using cataloged interface metadata Financial order-overseas-stock Order overseas stock (buy/sell) from Korea Investment & Securities Financial order-stock Order stock (buy/sell) from Korea Investment & Securities Read get-kis-api-spec Get one KIS REST API spec with endpoint, TR_ID candidates, and request parameters Read inquery-balance Get current stock balance information from Korea Investment & Securities Read inquery-order-detail Get order detail from Korea Investment & Securities Read inquery-order-list Get daily order list from Korea Investment & Securities Read inquery-overseas-stock-price Get overseas stock price from Korea Investment & Securities

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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 inquery-stock-basic-info

What does the inquery-stock-basic-info tool do? +

Get basic domestic stock product information from Korea Investment & Securities. It is categorised as a Read tool in the KIS REST API MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on inquery-stock-basic-info? +

Register the KIS REST API MCP Server MCP server in PolicyLayer and add a rule for inquery-stock-basic-info: 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 KIS REST API MCP Server. Nothing to install.

What risk level is inquery-stock-basic-info? +

inquery-stock-basic-info is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit inquery-stock-basic-info? +

Yes. Add a rate_limit block to the inquery-stock-basic-info 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 inquery-stock-basic-info completely? +

Set action: deny in the PolicyLayer policy for inquery-stock-basic-info. 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 inquery-stock-basic-info? +

inquery-stock-basic-info is provided by the KIS REST API MCP Server MCP server (migusdn/kis_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every KIS REST API MCP Server tool call.

Start from KIS REST API 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 →