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mcp/harbor
Grok

multi-mail for Grok

io.github.yybd/multi-mail-mcp

Several Gmail accounts: search, read, draft, send, labels and Google Calendar. Own OAuth client.

client:Grok transport:stdio runtime:npm

Install multi-mail 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": {
    "multi-mail-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@yybd/multi-mail-mcp"
      ],
      "env": {
        "MULTI_MAIL_DEFAULT": "<MULTI_MAIL_DEFAULT>",
        "MULTI_MAIL_HOME": "<MULTI_MAIL_HOME>",
        "MULTI_MAIL_SEND": "<MULTI_MAIL_SEND>",
        "MULTI_MAIL_TZ": "<MULTI_MAIL_TZ>"
      }
    }
  }
}

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

multi-mail in other clients

multi-mail MCP server