Transactional Email API

1. Create your email in EmailUX Studio

• Go to **Dashboard → Emails** and click **+ New Email**.
• In the Studio, click **Settings** (top right) to set the Experience ID, Subject, and Preview Text.
• Build your template using components, then click **Save**.
• Use the **Tools** panel (bottom left) to adjust theme, body settings, and add dynamic content.

2. How the EmailUX API works

The official @emailux/api-client package provides two main endpoints:

• POST /v1/render — Returns clean HTML for a template. Use this when you want to send through your own system.
• POST /v1/deliver — Renders the template and sends it through your connected ESP in one call.

import { EmailUxApiClient } from "@emailux/api-client";

const client = new EmailUxApiClient({
  apiKey: process.env.EMAILUX_API_KEY!,
  defaultLocale: "en-US",
});

await client.deliver({
  experienceId: "PASSWORD_RESET",   // From EmailUX Studio
  locale: "en-US",
  channelData: {
    toEmail: "user@example.com",
    fromEmail: "noreply@your-domain.com",
  },
  data: {
    firstName: "Alex",
    resetUrl: "https://app.example.com/reset?token=abc123",
  },
});

Why separate design from delivery?

Transactional emails are a core part of the user experience. By designing in EmailUX Studio and triggering via API, you get:

• Consistent, on-brand, accessible templates
• Easy localization and A/B testing
• Full control over deliverability through your own ESP

See also: Transactional Email Glossary, Email Authentication Guide, and Email Subdomain Strategy.