> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usesendly.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Welcome to Sendly

> The most reliable email delivery platform

## What is Sendly?

Sendly is a highly reliable transactional email delivery platform. It gives you the infrastructure you need to send, track, and manage email at scale.

## Why choose Sendly

* **Highly reliable**: 99.9% deliverability
* **Easy to use**: simple, documented API
* **JavaScript/TypeScript SDK**: quick integration into your projects
* **24/7 support**: we’re here to help
* **Scalable**: handle millions of emails with ease

## Getting started

Choose how you want to start:

<CardGroup cols={2}>
  <Card title="Quickstart guide" icon="play" href="/quickstart">
    Learn the basics in 5 minutes.
  </Card>

  <Card title="Authentication" icon="key" href="/authentication">
    Set up your API key.
  </Card>

  <Card title="API reference" icon="code" href="/api-overview">
    Explore every endpoint.
  </Card>

  <Card title="Best practices" icon="lightbulb" href="/best-practices">
    Improve deliverability.
  </Card>
</CardGroup>

## Use cases

Sendly is ideal for:

* **Registration confirmations**: send automated welcome emails
* **Password recovery**: manage secure reset links
* **Order notifications**: keep customers informed
* **Alerts and reports**: share important events in real time
* **Transactional newsletters**: deliver personalized updates

## Quick integration

```javascript theme={null}
import { Sendly } from '@sendlyapp/sdk'

const client = new Sendly('your_api_key')

await client.emails.send({
  from: 'noreply@yourdomain.com',
  to: 'user@example.com',
  subject: 'Welcome',
  html: '<h1>Hello!</h1><p>Thanks for signing up.</p>'
})
```

***

Need help? Contact our team at [support@usesendly.app](mailto:support@usesendly.app)