RedoxNet.Mcp.LsOpenApi 0.4.0

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. Prompting for them in conversation would either log them or train callers to share them in transcripts, so that input path is intentionally closed off.

Tools (v0.4.0)

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