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

# Send emails with Leap and Resend

> Learn how to add the Resend integration to your Leap.new project.

[Leap](https://leap.new) is a platform for building full-stack web and mobile apps via chat.

## Guide

**1. Ask Leap to add Resend**

You can add Resend in a Leap project by asking the chat to add email sending with Resend.

**Example prompt**

```
When someone fills out the contact form, send an email using Resend.
```

**2. Add your Resend API key**

To use Resend with Leap, you'll need to add a Resend API key, which you can create in the [Resend Dashboard](https://resend.com/api-keys). Do not share your API key with others or expose it in the browser or other client-side code.

Leap will prompt you to set a secret value on the Infrastructure page. Paste your key value and click **Update secret**.

![adding the Resend integration to a leap.new chat](https://mintcdn.com/resend/OWNnQaVDyqcGyhhN/images/leap-new-integration.png?fit=max\&auto=format\&n=OWNnQaVDyqcGyhhN\&q=85\&s=d1c68aa7b6144ffcd8ee2793cdebe67d)

> [!NOTE]
>
> Learn more about the Resend integration in the [Leap
> documentation](https://docs.leap.new/integrations/resend).

**3. Add a custom domain to your Resend account**

By default, you can only send emails to your own email address.

To send emails to other email addresses:

1. Add a [custom domain to your Resend account](/docs/add-a-domain).
2. Add the custom domain to the `from` field in the `resend` function in Leap (or ask the chat to update these fields).

Get more help adding a custom domain in [Resend's documentation](/docs/dashboard/domains/introduction).