call-kis-api

THE RISK

Critical Risk

Why call-kis-api needs a policy

This tool can invoke any KIS REST API endpoint, which per the server description includes stock trading operations (buy/sell orders), account management, and financial transactions. Because it can trigger arbitrary API calls including trading operations, it spans Financial (most severe) category.

From the tool's definition Call any collected KIS REST API by group/api_type using cataloged interface metadata — combined with server description: 'enabling domestic and foreign stock trading, price checks, and account management'

Documented attack patterns abuse exactly the kind of access call-kis-api gives an agent:

POLICY

How to control call-kis-api

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 call-kis-api:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "call-kis-api": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

Any call to call-kis-api is blocked until a human approves it. The rest of the server keeps working.

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.

GATE THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More KIS REST API MCP Server tools

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 Read inquery-stock-ask Get stock ask price from Korea Investment & Securities

All 15 KIS REST API MCP Server tools →

Financial tools on other servers

0xarchive web3_subscribe Math MCP Server financial_calculator MCP Kling generate_video MCP Uber Server uber_request_ride

Go deeper

Critical-risk tools in KIS REST API MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Human-in-the-loop → When a tool call should wait for a person — and when policy can decide alone.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

Questions about call-kis-api

What does the call-kis-api tool do? +

Call any collected KIS REST API by group/api_type using cataloged interface metadata. It is categorised as a Financial tool in the KIS REST API MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on call-kis-api? +

Register the KIS REST API MCP Server MCP server in PolicyLayer and add a rule for call-kis-api: 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 call-kis-api? +

call-kis-api is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit call-kis-api? +

Yes. Add a rate_limit block to the call-kis-api 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 call-kis-api completely? +

Set action: deny in the PolicyLayer policy for call-kis-api. 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 call-kis-api? +

call-kis-api 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 →