> ## Documentation Index
> Fetch the complete documentation index at: https://trigger-v3-fix-additional-files.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Resend overview & authentication

## Overview

Resend is the email API for developers. With our Resend integration you can send email campaigns, transactional emails, and automated emails (drip campaigns) from your app.

## Installing the Resend packages

To get started with our Resend integration, you need to install the `@trigger.dev/resend` packages. You can do this using `npm`, `pnpm`, or `yarn`:

<CodeGroup>
  ```bash npm
  npm install @trigger.dev/resend@latest
  ```

  ```bash pnpm
  pnpm install @trigger.dev/resend@latest
  ```

  ```bash yarn
  yarn add @trigger.dev/resend@latest
  ```
</CodeGroup>

## Authentication

Resend supports API Keys. Official documentation [here](https://resend.com/docs/api-reference/api-keys/create-api-key).

```ts
import { Resend } from "@trigger.dev/resend";

const resend = new Resend({
  id: "resend",
  apiKey: process.env.RESEND_API_KEY!,
});
```

## Tasks

Once you have set up a Resend client, you can use it to create tasks.

<Card title="Tasks" icon="sparkles" href="/integrations/apis/resend-tasks">
  Send emails with Resend.
</Card>

## Example jobs

<Card title="Code examples" icon="code" href="https://trigger.dev/apis/resend">
  Check out pre-built jobs using Resend in our API section.
</Card>