> ## Documentation Index
> Fetch the complete documentation index at: https://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

<Steps>
  <Step title="Open the API Keys page">
    Sign in to the [Resend Dashboard](https://resend.com) and select **API Keys**
    in the left sidebar.
  </Step>

  <Step title="Create an API key">
    Click **Create API Key** and give the key a name (up to 50 characters).
  </Step>

  <Step title="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.
  </Step>

  <Step title="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.
    </Note>
  </Step>
</Steps>

## Connect to Adapt

<Steps>
  <Step title="Open Integrations">
    In Adapt, go to **Settings > Integrations**.
  </Step>

  <Step title="Find Resend">
    Search for **Resend** and select it from the catalog.
  </Step>

  <Step title="Start the connection">
    Click **Connect** to open the connection form.
  </Step>

  <Step title="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.
  </Step>

  <Step title="Test the connection">
    Ask Adapt to list your verified domains.
  </Step>
</Steps>

### 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.
```