SendGrid Has a Free API — Send 100 Emails Per Day With Templates, Analytics, and Deliverability Built In

SendGrid's free tier gives you 100 emails per day — forever, not just a trial. That's 3,000 emails per month with delivery tracking, templates, and analytics. No credit card required. Get Your Free API Key Sign up at sendgrid.com Go to Settings → API Keys → "Create API Key" Select "Full Access" or "Restricted Access" with Mail Send permission Copy your key (starts with SG. ) 1. Send an Email curl -X POST "https://api.sendgrid.com/v3/mail/send" \ -H "Authorization: Bearer SG.YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "personalizations": [{"to": [{"email": "recipient@example.com"}]}], "from": {"email": "you@yourdomain.com", "name": "Your App"}, "subject": "Welcome to My App!", "content": [{"type": "text/html", "value": "<h1>Welcome!</h1><p>Thanks for signing up.</p>"}] }' 2. Python — Transactional Emails from sendgrid import SendGridAPIClient from sendgrid.helpers.mail import Mail sg = SendGridAPIClient ( " SG.YOUR_API_KEY " ) def send_welcome_email ( to_email , username