Mailbox MCP Server: Install & Setup

Install Mailbox in Claude Code

Claude Code

claude mcp add jgalea-mailbox -- npx -y mailbox-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "jgalea-mailbox": {
      "command": "npx",
      "args": [
        "-y",
        "mailbox-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the Mailbox MCP server do?

Multi-account email MCP server for Gmail, IMAP, and JMAP: search, send, drafts, labels.

Is the Mailbox MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Mailbox run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Mailbox to Claude Code?

Run: claude mcp add jgalea-mailbox -- npx -y mailbox-mcp

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