Assistant Mail MCP Server: Install & Setup

Install Assistant Mail in Claude Code

Claude Code

claude mcp add assistant-mail -e ASSISTANT_MAIL_API_KEY=... -- npx -y @assistantmail/assistantmail-mcp

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

{
  "mcpServers": {
    "assistant-mail": {
      "command": "npx",
      "args": [
        "-y",
        "@assistantmail/assistantmail-mcp"
      ],
      "env": {
        "ASSISTANT_MAIL_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Assistant Mail MCP server do?

Agent email with allowlist and consent via AssistantMail.

Is the Assistant Mail MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Assistant Mail run locally or remotely?

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

How do I add Assistant Mail to Claude Code?

Run: claude mcp add assistant-mail -e ASSISTANT_MAIL_API_KEY=... -- npx -y @assistantmail/assistantmail-mcp

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