Agentmail MCP

AgentMail MCP Server

Connect AgentMail to any MCP-compatible AI client. Three setup options available.

Prerequisites

Get your API key from console.agentmail.to.

Option 1: Remote MCP (Simplest)

No installation required. Connect directly to the hosted MCP server.

URL: https://mcp.agentmail.to

Add to your MCP client configuration:

{
  "mcpServers": {
    "AgentMail": {
      "url": "https://mcp.agentmail.to",
      "env": {
        "AGENTMAIL_API_KEY": "YOUR_API_KEY"
      }
    }
  }
}

Option 2: Local npm Package

Run the MCP server locally via npx.

{
  "mcpServers": {
    "AgentMail": {
      "command": "npx",
      "args": ["-y", "agentmail-mcp"],
      "env": {
        "AGENTMAIL_API_KEY": "YOUR_API_KEY"
      }
    }
  }
}

Tool Selection

Load only specific tools with the --tools argument:

{
  "mcpServers": {
    "AgentMail": {
      "command": "npx",
      "args": [
        "-y",
        "agentmail-mcp",
        "--tools",
        "send_message,reply_to_message,list_inboxes"
      ],
      "env": {
        "AGENTMAIL_API_KEY": "YOUR_API_KEY"
      }
    }
  }
}

Option 3: Local Python Package

Install and run the Python MCP server.

pip install agentmail-mcp

Claude Desktop

Config location:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "AgentMail": {
      "command": "/path/to/your/.venv/bin/agentmail-mcp",
      "env": {
        "AGENTMAIL_API_KEY": "YOUR_API_KEY"
      }
    }
  }
}

Find your path:

# Activate your virtual environment, then:
which agentmail-mcp

Run Standalone

export AGENTMAIL_API_KEY=your-api-key
agentmail-mcp

Available Tools

Client Configuration

Cursor, VS Code, Windsurf

Add the same MCP server entry in your client config file:

Cursor: .cursor/mcp.json
VS Code: .vscode/mcp.json
Windsurf: MCP config file

{
  "mcpServers": {
    "AgentMail": {
      "command": "npx",
      "args": ["-y", "agentmail-mcp"],
      "env": {
        "AGENTMAIL_API_KEY": "YOUR_API_KEY"
      }
    }
  }
}

Compatible Clients

The AgentMail MCP server works with any MCP-compatible client:

• Claude Desktop
• Cursor
• VS Code
• Windsurf
• Cline
• Goose
• Raycast
• ChatGPT
• Amazon Q
• Codex
• Gemini CLI
• LibreChat
• Roo Code
• And more...

Example Usage

Once configured, you can ask your AI assistant:

• "Create a new inbox for support emails"
• "Send an email to john@example.com with subject 'Hello'"
• "Check my inbox for new messages"
• "Reply to the latest email thanking them"
• "List all my email threads"
• "Download the attachment from the last message"

Troubleshooting

"Command not found"

Ensure npm/npx is in your PATH, or use the full path:

"command": "/usr/local/bin/npx"

"Invalid API key"

Verify your API key is correct and has the necessary permissions.

Python package not found

Use the full path to the agentmail-mcp executable in your virtual environment:

# Find the path
source /path/to/venv/bin/activate
which agentmail-mcp