AgentMail MCP Server

What it does

AgentMail MCP Server connects AI agents to AgentMail — a service purpose-built for giving autonomous agents their own email addresses. Through this MCP server, agents can create and manage inboxes, send and receive emails, read message threads, and act on email-based workflows without any human in the loop.

This is especially useful for agents that need to communicate with external services, receive confirmations, handle sign-up flows, or participate in email-based processes as a first-class actor.

Tools

• create_inbox — provision a new agent-owned email inbox
• list_inboxes — retrieve all inboxes for the current account
• send_email — send an email from an agent inbox to any recipient
• list_emails — list emails in an inbox with optional filtering
• get_email — retrieve full email content including body and headers
• delete_inbox — remove an inbox when no longer needed

(Tool list inferred from the agentmail-toolkit package and AgentMail API; exact names may vary by version.)

Installation

Deployed via Smithery. Add to claude_desktop_config.json:

{
  "mcpServers": {
    "agentmail": {
      "command": "npx",
      "args": ["-y", "agentmail-mcp-server"],
      "env": {
        "AGENTMAIL_API_KEY": "your-api-key-here"
      }
    }
  }
}

Get your API key at agentmail.to.

Supported hosts

Works with any MCP-compatible client. Claude Desktop recommended for agentic email workflows.