SendGrid Integration Skill

Complete SendGrid email integration template with email client setup, reusable templates, and transactional email functionality.

Overview

This template includes:

• SendGrid Client Setup - Server-side SendGrid SDK configuration
• Email Templates - Pre-built welcome and notification templates
• Type Safety - Full TypeScript support
• Error Handling - Comprehensive email delivery tracking
• Template System - Reusable HTML email templates

When to Use This Template

Use this template when you need:

• Transactional email sending
• Welcome email flows
• Notification emails
• Password reset emails
• Email verification
• Custom email templates

What's Included

Code Files

• code/client.ts - SendGrid SDK setup and email utilities
• code/templates/welcome.ts - Welcome email template
• code/templates/notification.ts - Notification email template

Configuration

• mcp/config.json - MCP server configuration for SendGrid
• env/.env.template - Required environment variables

Documentation

• docs/README.md - Complete setup and usage guide

Quick Start

1. Install Dependencies

   npm install @sendgrid/mail
   

2. Configure Environment Variables

   cp templates/sendgrid/env/.env.template .env.local
   # Add your SendGrid API key
   

3. Copy Template Files

   npx tsx scripts/load-template.ts sendgrid
   

4. Verify Sender Email

   • Go to SendGrid Dashboard
   • Add and verify sender email address

Key Features

1. Send Transactional Emails

import { sendEmail } from '@/lib/sendgrid/client'

await sendEmail({
  to: 'user@example.com',
  subject: 'Welcome to our app!',
  text: 'Thanks for signing up.',
  html: '<strong>Thanks for signing up!</strong>',
})

2. Use Email Templates

import { sendWelcomeEmail } from '@/lib/sendgrid/templates/welcome'

await sendWelcomeEmail({
  to: 'user@example.com',
  name: 'John Doe',
  loginUrl: 'https://app.example.com/login',
})

3. Send Notifications

import { sendNotificationEmail } from '@/lib/sendgrid/templates/notification'

await sendNotificationEmail({
  to: 'user@example.com',
  title: 'New Message',
  message: 'You have received a new message.',
  actionUrl: 'https://app.example.com/messages',
  actionText: 'View Message',
})

4. Batch Email Sending

import { sendBulkEmail } from '@/lib/sendgrid/client'

await sendBulkEmail({
  to: ['user1@example.com', 'user2@example.com'],
  subject: 'Newsletter',
  html: '<p>Monthly newsletter content</p>',
})

Email Templates

Welcome Email

Professional welcome email with call-to-action button.

Notification Email

Generic notification template for alerts and updates.

Custom Templates

Create custom templates following the same pattern:

export async function sendCustomEmail(params: {
  to: string
  // ... custom params
}) {
  return sendEmail({
    to: params.to,
    subject: 'Custom Subject',
    html: generateHtmlTemplate(params),
  })
}

Security Best Practices

• Never expose API keys client-side
• Validate recipient email addresses
• Implement rate limiting
• Use unsubscribe links
• Handle bounces and spam reports

Testing

Test Mode

SendGrid provides a sandbox mode for testing:

const client = sendgrid()
client.setApiKey(process.env.SENDGRID_API_KEY!)
client.setSandboxMode(true) // Enable sandbox

Email Validation

Always validate emails before sending:

import { isValidEmail } from '@/lib/sendgrid/utils'

if (!isValidEmail(email)) {
  throw new Error('Invalid email address')
}

Resources

• SendGrid Documentation
• SendGrid Dashboard
• Email Best Practices

Template Version: 1.0.0 Last Updated: 2026-01-04 Maintainer: Turbocat Agent System