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Transactional Emails

Fast & reliable email API for developers.

Send password resets, order confirmations, and critical alerts instantly with a reliable email API built for developers.

Email API

Developer-first email infrastructure

A clean, modern API for sending and tracking emails. Built for speed, reliability, and easy integration with your tech stack.

Documentation
curl --location 'https://api.autosend.com/v1/mails/send' 
--header 'Authorization: Bearer YOUR_API_KEY' 
--header 'Content-Type: application/json' 
--data-raw '{
  "from": {
    "email": "[email protected]",
    "name": "AutoSend"
  },
  "to": {
    "email": "[email protected]",
    "name": "Test User"
  },
  "subject": "Welcome to AutoSend 🎉",

  // Option 1: Send using template
  "templateId": "your_template_id",

  // Option 2: Send using raw HTML or text
  "html": "<h1>Hello User</h1><p>Thanks for joining AutoSend!</p>",
  "text": "Hello User,
Thanks for joining AutoSend!",

  // Optional: Unsubscribe group for compliance
  "unsubscribeGroupId": "12345"
}'

Real-time data log

Track every email you send. Literally!

Track every request, delivery, open, and click with detailed logs you can trust.

email insights

Email Templates

Create email templates in HTML, ReactEmail, or an email builder.

Design emails your way and inject dynamic data in real-timeusing {{variables}} for personalization at scale.

email insights

Send your mission-critical and time-sensitive emails with confidence!

  • Verification codes (OTP)

    Instant one-time passwords for logins and payments.

  • Password resets

    Fast account recovery when users forget credentials.

  • Security alerts

    Notify users of suspicious logins or account activity.

  • Account verification

    Confirm sign-ups and activate accounts.

  • Welcome emails

    Onboard users immediately after registration.

  • Profile updates

    Confirm changes to email, password, or personal info.

  • Order confirmations

    Reassure customers their purchase is successful.

  • Shipping updates

    Track orders with dispatch and delivery emails.

  • Payment receipts

    Send instant proof of completed transactions.

mail box icon

Email API for Developers!

Integrate transactional emails into your product with a clean, reliable API built for speed, scale, and detailed event logs.

Solutions

Transactional EmailMarketing EmailEmail Automation

Docs

Getting StartedAPI ReferenceMigration Guides

Resources

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Legal

Fair UsePrivacy PolicyTerms & ConditionsSubprocessors

Send transactional and marketing emails with AutoSend—clean API for developers, simple campaign tools for marketers.

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