Can LS Securities OpenAPI place trades or sync with my brokerage account?
No. The server is for information retrieval and local portfolio notes only. It does not place trades or sync with any LS Securities brokerage account.

@redoxnet
Basic information
MCP server for LS Securities OpenAPI — Korean stock quotes, multi-timeframe charts, technical indicators, market screeners, ETF holdings, and local portfolio notes as natural-language tools for Claude Desktop, Claude Code, VS Code, and Codex. Built on .NET, distributed via NuGet
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"lsopenapi": {
"command": "dnx",
"args": [
"RedoxNet.Mcp.LsOpenApi",
"--yes"
],
"env": {
"LS_APPKEY": "<YOUR_LS_APPKEY>",
"LS_APPSECRETKEY": "<YOUR_LS_APPSECRETKEY>",
"LS_MARKET": "real"
}
}
}
}Tool list not available yet
This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.
We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.
LS Securities OpenAPI is an unofficial third-party MCP server that lets AI assistants query Korean stock market data from LS Securities. It provides quotes, order books, charts, technical indicators, ETF holdings, market screeners, index context, analyst opinions, short-selling trends, and local portfolio notes to MCP-compatible clients such as Claude Desktop, Claude Code, VS Code, and Codex. It does not place trades or sync brokerage accounts.
Obtain an LS OpenAPI AppKey and AppSecretKey from openapi.ls-sec.co.kr, then configure your MCP client with the JSON snippet using the dnx command (requires .NET SDK 10 or later). Set three environment variables: LS_APPKEY, LS_APPSECRETKEY, and LS_MARKET (set to "real"). After setup, prompt your AI assistant in natural language—for example, "Show me Samsung Electronics' current quote and 10-level order book."
No. The server is for information retrieval and local portfolio notes only. It does not place trades or sync with any LS Securities brokerage account.
The `dnx` command requires .NET SDK 10 or later to be installed on your machine.
Portfolio data is stored only on your local machine in SQLite. It is not synced with LS Securities and does not represent live brokerage account state.
`LS_APPKEY` and `LS_APPSECRETKEY` are accepted only through environment variables and are never requested through chat, tool arguments, or MCP elicitation. Raw credentials are not written to disk, and the token cache key stores only `SHA256(appkey):market`. Logs and error messages mask secrets.
The server connects to LS Securities' public OpenAPI using the user-provided AppKey and AppSecretKey. It communicates with MCP clients via standard MCP transport and never exposes credentials to the AI assistant during conversation.

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