> ## Documentation Index
> Fetch the complete documentation index at: https://v1-docs.adapt.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Resend

> Connect Resend to Adapt to send and review transactional email

Resend is an email API for sending transactional and marketing email. Connect it
to Adapt with a Resend API key.

## Set up credentials

**1. Open the API Keys page**

Sign in to the [Resend Dashboard](https://resend.com) and select **API Keys**
in the left sidebar.

**2. Create an API key**

Click **Create API Key** and give the key a name (up to 50 characters).

**3. Choose a permission level**

Select **Full access** to allow read and write on any resource, or
**Sending access** to allow sending only. If you choose Sending access, you
can optionally restrict the key to a specific domain.

**4. Copy the key**

Click **Add** to create the key, then copy the value (it starts with `re_`).

> [!NOTE]
>
> The key is shown only once. Store it somewhere safe before leaving the page.

## Connect to Adapt

**1. Open Integrations**

In Adapt, go to **Settings > Integrations**.

**2. Find Resend**

Search for **Resend** and select it from the catalog.

**3. Start the connection**

Click **Connect** to open the connection form.

**4. Add your credentials**

Enter the values you gathered above, then click **Add connection**:

| Secret Name | Value |
| - | - |
| `RESEND_API_KEY` | Your Resend API key |

You can rename the connection and choose whether it is shared with your
organization or kept personal to you.

**5. Test the connection**

Ask Adapt to list your verified domains.

### Security

* Credentials are encrypted at rest with AES-256
* Scope the key to Sending access, and to a single domain, when you only need to send email
* Resend keys do not expire automatically; rotate them periodically and delete unused keys
* Never share your API key or commit it to source control

## Capabilities

Send transactional and marketing emails through Resend, and review domains and
email activity from Adapt.

### Examples

Send a transactional email:

```
Send a welcome email from Resend to new@example.com with the subject "Welcome aboard".
```

Check domain status:

```
List my Resend domains and tell me which ones are verified.
```

Review recent activity:

```
Show the delivery status of emails Resend sent in the last 24 hours.
```

Investigate bounces:

```
Find emails that bounced today in Resend and summarize the reasons.
```


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