Lexu MCP Server

io.lexu/mcpv0.2.0

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Active21d ago

Install Lexu MCP server

claude mcp add lexu -e LEXU_API_KEY='<lexu-api-key>' -- npx -y @lexu/mcp

{
  "mcpServers": {
    "lexu": {
      "command": "npx",
      "args": [
        "-y",
        "@lexu/mcp"
      ],
      "env": {
        "LEXU_API_KEY": "<lexu-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "lexu": {
      "command": "npx",
      "args": [
        "-y",
        "@lexu/mcp"
      ],
      "env": {
        "LEXU_API_KEY": "<lexu-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "lexu": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@lexu/mcp"
      ],
      "env": {
        "LEXU_API_KEY": "<lexu-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "lexu": {
      "command": "npx",
      "args": [
        "-y",
        "@lexu/mcp"
      ],
      "env": {
        "LEXU_API_KEY": "<lexu-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
LEXU_API_KEY	—	yes	Lexu API key (lexu_live_...). Optional if you ran `npx @lexu/mcp login`.

Remote endpoints

streamable-httphttps://www.lexu.io/mcp

Freshness

Active — last maintenance signal 21d ago. The newest of the signals below sets the band.

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Latest release
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Package published
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Registry entry updated
2026-09-18 · 21d ago · official registry · v0.2.0

FAQ

›How do I install the Lexu MCP server in Claude Code?

Run: claude mcp add lexu -e LEXU_API_KEY='<lexu-api-key>' -- npx -y @lexu/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Lexu require an API key?

Yes. It expects LEXU_API_KEY, of which 1 is a secret.

›Can I use Lexu as a remote (hosted) MCP server?

Yes — it offers both a hosted endpoint and a local stdio package.

›Is Lexu in the official MCP registry?

Yes, as io.lexu/mcp.