RedoxNet.Mcp.LsOpenApi 0.3.0

RedoxNet.Mcp.LsOpenApi

MCP server for the LS증권 OpenAPI — exposes Korean stock market data as MCP tools so AI assistants can query quotes, charts, and ETF data in natural language.

Unofficial third-party MCP server. Not affiliated with or endorsed by LS Securities Co., Ltd. (LS증권). Read-only market-data scope (실시간 / 계좌 / 주문 deferred).

Install

dnx fetches the latest published version from NuGet on every launch — no separate install step. Wire it into your MCP host:

Claude Desktop / Claude Code

claude_desktop_config.json (Claude Desktop) or .mcp.json at your workspace root (Claude Code):

{
  "mcpServers": {
    "lsopenapi": {
      "command": "dnx",
      "args": ["RedoxNet.Mcp.LsOpenApi", "--yes"],
      "env": {
        "LS_APPKEY": "...",
        "LS_APPSECRETKEY": "...",
        "LS_MARKET": "virtual"  // "virtual" (paper) or "real" (live)
      }
    }
  }
}

Codex CLI

%USERPROFILE%\.codex\config.toml (Windows) or ~/.codex/config.toml (macOS / Linux):

[mcp_servers.lsopenapi]
command = "dnx"
args = ["RedoxNet.Mcp.LsOpenApi", "--yes"]

[mcp_servers.lsopenapi.env]
LS_APPKEY = "..."
LS_APPSECRETKEY = "..."
LS_MARKET = "virtual"  # "virtual" (paper) or "real" (live)

VS Code

Workspace .vscode/mcp.json:

{
  "servers": {
    "lsopenapi": {
      "type": "stdio",
      "command": "dnx",
      "args": ["RedoxNet.Mcp.LsOpenApi", "--yes"],
      "env": {
        "LS_APPKEY": "...",
        "LS_APPSECRETKEY": "...",
        "LS_MARKET": "virtual"  // "virtual" (paper) or "real" (live)
      }
    }
  }
}

FieldCure AssistStudio

Settings → Connect → Add MCP Server, then fill the dialog:

LS_APPKEY=...
LS_APPSECRETKEY=...
LS_MARKET=virtual

AssistStudio renders the optional Plotly chart spec from ls_get_chart inline in the chat — call it with include_chart=true (single timeframe) to get a candlestick chart directly in the conversation.

Environment variables

Credentials are accepted only through the process environment — never through chat, tool arguments, or MCP elicitation. See ADR-001 for the rationale.

Tools (v0.3.0)

Full release notes: https://github.com/redoxnet/mcp-lsopenapi/blob/main/RELEASENOTES.Mcp.md

Documentation & source

• Project home: https://github.com/redoxnet/mcp-lsopenapi
• TR inventory: https://github.com/redoxnet/mcp-lsopenapi/blob/main/docs/LS-TR-INVENTORY.md
• SDK package: https://www.nuget.org/packages/RedoxNet.LsOpenApi.Core/
• License: MIT