Email API for developers

The minimum infra to send transactional email — password resets, onboarding, notifications — one call. You decide what and when.

Just send the damn email.

One API call. That's it.

email/send
// Using Fetch API
const response = await fetch('https://notify.cx/api/email/send', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'x-api-key': 'your-api-key'
  },
  body: JSON.stringify({
    to: 'user@example.com',
    subject: 'Welcome aboard!',
    message: '<h1>Welcome!</h1><p>Thanks for joining us.</p>'
  })
});

const data = await response.json();

Powering teams at

  • In Plain English logo
  • Differ logo
  • Obsurfable logo

What is Notify?

Notify is the minimum high-quality email infrastructure for developers. Send transactional email with one API call, verify your domain, and monitor delivery with logs and webhooks. No drag-and-drop builders — your AI (or you) writes the HTML; Notify delivers it.

Built for products that send

From gamification and comment alerts to multi-day onboarding — Notify handles the send so teams can focus on the product.

In Plain English logo

Powers gamification emails on the popular writing platform — streaks, milestones, and engagement that keep writers coming back.

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Differ logo

Sends transactional email whenever writers get new comments and likes — so they never miss engagement on their work.

100,000+ writers notified

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Obsurfable logo

Runs the full onboarding sequence — from email confirmation and the first welcome email through tips and tricks up to day 7.

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Integrate, send, observe

From account to first send — then use logs to see what happened.

1

Sign up

No credit card needed.

2

Verify your domain

Required before production sending.

3

Send from your app

One API call. You own the content and timing.

4

Observe

Delivery, opens, and clicks in the dashboard.

Send and observe — nothing extra

API, domains, delivery logs, and webhooks. Skip the template builders; let your AI write the HTML.

Email API

Send transactional email from your app with one focused endpoint.

Verified domains

SPF and DKIM setup so production mail authenticates correctly.

Delivery logs

See what happened after every send — delivery, opens, and clicks.

Webhooks

Push email events to your app so your product can react in real time.

Fair pricing for stripped-back infra

Because we focus on send and observe — not a template suite — you get a free tier and paid plans that start at half what many email APIs charge. See pricing.

Frequently asked questions

What is Notify?

Notify is an email API for developers. Send transactional emails—password resets, onboarding, notifications, and receipts—with one API call, then monitor delivery with logs and webhooks. No template builders: you (or your AI) own the HTML.

What kinds of email can I send?

Notify is built for transactional email: account verification, password resets, product notifications, receipts, and similar app-triggered messages.

Do I need to verify a domain?

Yes for production sending. You create credentials, verify your sending domain with SPF and DKIM, then send from the API or dashboard.

Is there a free plan?

Yes. The free plan includes 1,000 emails per month, 1 domain, and 48-hour email logs. Paid plans start at $10/month for 10,000 emails with permanent logs and webhooks.

Start sending with one API call

Integrate, send, then watch opens and clicks in the dashboard.