---
title: Quickstart · Express
description: Send transactional email with Envimaily in Express. Copy-paste HTTP example.
locale: en
---

# Quickstart · Express

Send transactional email through Envimaily's HTTP API (`https://api.envimaily.com`) with **Express**.

## 1. Account & key

1. Sign up at [https://app.envimaily.com/dev/signup](https://app.envimaily.com/dev/signup)
2. Create an `em_` key under **API keys**
3. Copy the token once — it is not shown again

## 2. Example

```js
const res = await fetch('https://api.envimaily.com/v1/emails', {
  method: 'POST',
  headers: {
    Authorization: 'Bearer em_YOUR_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    from: 'onboarding@envimaily.com',
    to: ['you@example.com'],
    subject: 'Hello from São Paulo',
    html: '<p>It works.</p>',
  }),
});
console.log(await res.json());
```

## 3. Without a verified domain

Use the shared test sender `onboarding@envimaily.com` and send only to the account owner email. After SPF/DKIM verification, send from your domain.

## 4. Limits

| Plan | Month | Day |
|------|-------|-----|
| Dev Free | 1,000 | 100 |
| Dev Pro | 50,000 | 5,000 |

Next: [Domains & DNS](/docs/domains) · [Emails API](/docs/api/emails) · [Migrate from Resend](/docs/migrate/resend)