Lex for Grok

Install Lex in Grok

.mcp.json (in your project root)

{
  "mcpServers": {
    "lex": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@smartergpt/lex-mcp"
      ],
      "env": {
        "LEX_WORKSPACE_ROOT": "<LEX_WORKSPACE_ROOT>",
        "LEX_MEMORY_DB": "<LEX_MEMORY_DB>",
        "LEX_DEBUG": "<LEX_DEBUG>"
      }
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs