Auth Your Agent for Grok

Install Auth Your Agent in Grok

.mcp.json (in your project root)

{
  "mcpServers": {
    "mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "authyouragent"
      ],
      "env": {
        "AYA_AGENT_ID": "<AYA_AGENT_ID>",
        "AYA_KEY_FILE": "<AYA_KEY_FILE>",
        "AYA_VAULT_URL": "<AYA_VAULT_URL>",
        "AYA_VAULT_TOKEN_FILE": "<AYA_VAULT_TOKEN_FILE>"
      }
    }
  }
}

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