Get Korean stock market index price from Korea Investment & Securities
AI agents call inquery-stock-market to retrieve information from KIS REST API MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves market index price data from the KIS API. It performs a simple query operation with no ability to modify data, execute code, delete records, or commit financial transactions. The severity is low as misuse would only expose publicly available market data with minimal impact.
From the tool's definition Tool name 'inquery-stock-market' and description 'Get Korean stock market index price' indicate data retrieval with no modification or side effects. The verb 'Get' and context of 'price' query confirms read-only operation.
Documented attack patterns abuse exactly the kind of access inquery-stock-market gives an agent:
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-market:
{
"version": "1",
"default": "deny",
"tools": {
"inquery-stock-market": {}
}
}inquery-stock-market is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get Korean stock market index price 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.
Register the KIS REST API MCP Server MCP server in PolicyLayer and add a rule for inquery-stock-market: 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.
inquery-stock-market 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 inquery-stock-market 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 inquery-stock-market. 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.
inquery-stock-market 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.
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.
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15 KIS REST API MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.