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mcp/harbor
Grok

three.ws Brain for Grok

io.github.nirholas/brain-mcp

List LLM providers and run chat completions through the three.ws multi-provider router.

client:Grok transport:stdio runtime:npm

Install three.ws Brain in Grok

.mcp.json (in your project root)

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "brain-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/brain-mcp"
      ],
      "env": {
        "THREE_WS_BASE": "<THREE_WS_BASE>",
        "THREE_WS_API_KEY": "<THREE_WS_API_KEY>",
        "THREE_WS_TIMEOUT_MS": "<THREE_WS_TIMEOUT_MS>"
      }
    }
  }
}

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

three.ws Brain in other clients

three.ws Brain MCP server