Grok Build MCP Server

What the code does

We read the source, 18 h ago · rules 3dff92dd89df

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

      child = spawn(options.binary, [...options.args], {

    const logPath = path.join(runDir(ctx.config.stateDir, runId), 'worker.log');

  for (const [key, value] of Object.entries(process.env)) {

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Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add grok-build-mcp-server -- npx -y grok-build-mcp-server

{
  "mcpServers": {
    "grok-build-mcp-server": {
      "args": [
        "-y",
        "grok-build-mcp-server"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.grok-build-mcp-server]
command = "npx"
args = ["-y", "grok-build-mcp-server"]

{
  "mcpServers": {
    "grok-build-mcp-server": {
      "args": [
        "-y",
        "grok-build-mcp-server"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "grok-build-mcp-server": {
      "args": [
        "-y",
        "grok-build-mcp-server"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: GROK_BINARY (Path to the grok executable. Only needed when grok is not on PATH.), GROK_MCP_PERMISSION_CEILING (Highest permission level any call may request. Granted once at registration and never prompts again.), GROK_MCP_DEFAULT_PERMISSION (Permission level used when a call specifies none. Must be at or below the ceiling.), GROK_MCP_DEFAULT_MODEL (Model used when a call omits one.), GROK_MCP_DEFAULT_EFFORT (Reasoning effort used when a call omits one.), GROK_MCP_TIMEOUT_MS (Wall-clock kill for a single run, in milliseconds.), GROK_MCP_STATE_DIR (Directory for background job records. Defaults to $XDG_STATE_HOME/grok-mcp.), GROK_MCP_MAX_CONCURRENT_RUNS (Background runs alive at once. Use off, none, or unlimited for no cap.), STRUCTURED_CONTENT_ENABLED (Emit structuredContent alongside _meta. Off by default because some clients mishandle it.). The author declared them in the registry entry; get the values from the project itself.