How it works

Add Mailtrap’s MCP server to give the Augment Code’s Agent access to Mailtrap’s Email API, Email Sandbox, and template management. Type a natural-language prompt in the Agent panel, and Augment handles the API calls; no manual HTTP requests, no context switching.

Configuration

Step 1: Open the Augment panel in your editor and go to Settings via the gear icon.

Step 2: In the MCP section, click Import from JSON.

Step 3: Paste the following configuration and click Save:

{
  "mcp": {
    "servers": {
      "mailtrap": {
        "command": "npx",
        "args": ["-y", "mcp-mailtrap"],
        "env": {
          "MAILTRAP_API_TOKEN": "your_mailtrap_api_token",
          "DEFAULT_FROM_EMAIL": "your_sender@example.com",
          "MAILTRAP_ACCOUNT_ID": "your_account_id",
          "MAILTRAP_TEST_INBOX_ID": "your_test_inbox_id"
        }
      }
    }
  }
}

Step 4: Replace the placeholder values with your actual Mailtrap credentials before importing.

Step 5: Confirm the Mailtrap MCP server appears as active in the Agent’s tool list.

Note: DEFAULT_FROM_EMAIL must be an address on a domain you’ve already verified in Mailtrap’s Sending Domains. You can find MAILTRAP_ACCOUNT_ID under Settings → Account Settings, and MAILTRAP_TEST_INBOX_ID in your sandbox inbox URL.

For detailed guidance’ including the GUI setup option and step-by-step credential retrieval  consult the knowledge base article.

Use cases

1. Prompt the Agent to create and iterate on email templates. 
2. Send test emails to Mailtrap’s Email Sandbox and inspect delivery results.
3. Set up transactional email sending for a project by describing what you need.
4. Generate HTML email content from a design spec or wireframe description, then push it to Mailtrap as a reusable template.

Supported functionality

• Send transactional emails
• Manage email templates
• Use Email Sandbox for testing
• Track delivery statistics (opens, clicks, bounces)
• Manage sending streams